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Rockets And Missiles是什么意思

2023-06-16 08:12:17
共4条回复
左迁

Rockets And Missiles

火箭和导弹

例句:

1.

Even some rockets and missiles are powered by synthetic, rubber-based fuels.

甚至一些火箭和导弹也由以橡胶为基础的合成燃料驱动。

2.

He has sold nuclear technology to other rogue states and threatened his neighbors withtest-firings of rockets and missiles.

他也曾出售核子技术给其他流氓国家,并以试射火箭和飞弹恫吓邻国。

里论外几

Rockets And Missiles

火箭和导弹

例句:

1.Even some rockets and missiles are powered by synthetic, rubber-based fuels.

甚至一些火箭和导弹也由以橡胶为基础的合成燃料驱动。

2.He has sold nuclear technology to other rogue states and threatened his neighbors withtest-firings of rockets and missiles.

他也曾出售核子技术给其他流氓国家,并以试射火箭和飞弹恫吓邻国。

西柚不是西游

Rockets And Missiles

火箭和导弹

双语对照

例句:

1.

Even some rockets and missiles are powered by synthetic, rubber-based fuels.

甚至一些火箭和导弹也由以橡胶为基础的合成燃料驱动。

2.

The untidy political arrangements of its neighbour might be of no interest to israel but for the fact, now being underlined daily in fire, that by giving hizbullah all those rockets and missiles iran has transformed a small militia into a strategic threat to the jewish state.

以色列并不关心黎巴嫩混乱的政治格局,而是关注这样一个事实,那就是伊朗通过给予真主党的那些导弹和火箭已经将一个小型的民兵组织转变成为了一股对这个犹太国家的战略威胁。

可乐

火箭和导弹

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2023-06-16 04:49:281

高中英语作文:人类活动破坏环境

  每年的6月5日是世界环境日,近两年人们越来越重视环境日的宣传,因为人类的活动破坏了我们赖以生存的环境,人类已经意识到环境的改变。让我们行动起来,保护环境人人有责。下面是我为大家整理的一篇关于世界环境日的高中英语作文:人类活动破坏环境。   Some people believe that the Earth is beingharmed(damaged) by human activity. Others feel that human activitymakesthe Earth a better place to live. What is your opinion?Usespecific reasons and examples to supportyouranswer.   People have been living on the Earth for thousands of years.Humanactivity influences the Earth. Some people believe that theEarth isbeing harmed by human activity. Others feel that humanactivitymakes the Earth a better place to live. In my opinion, theearth isbeing damaged by human activity. There are manystatementssupporting my opinion.   Human activity has damaged natural environment and almostexaustednatural resources. Modern industry needs more and moreresources,including minerals, fuels and water. So we confront ofthe seriousproblems such as the lack of fuels and water.Ecological balance isdamaged because factories occupy many placeswhere animals andplants live. More and more buildings areconstructed and forestsbecome less and less. If we cannotrecognize these problems andsolve them soon, we would finally losethe environment suitable forour living.   An other serious problem is the green-house effect.Humanactivity decreases forests and increases the usage of fuels sothatthe gas of carbon dioxide is output more and more and there arenotenough plants to absorb it. The green-house effect is moreobviousand more sensible these years. Due to the effect, icebergsin thesouth polar and north polar melt and the sea level becomeshigherthan before. I am worried about the cities nearby the sea andhopescientists find an effective method to eliminate thegreen-houseeffect.   Although we have advanced machines and our life seemsmorecomfortable than before, we have less chances to approachnaturesand less spaces to act. The cities become bigger and if wewant tohave a picnic with our friends, we have to drive a longdistance tofind a natural place. In fact, the spaces of humanactivity arebeing damaged by the skyscrapers and factories.   From the above statements, we can conclude that humanactivitybrings the Earth many damages. Fortunately people haverecognizedthe point and I believe that the Earth will become abetter placeto live with our ceaseless efforts.
2023-06-16 04:49:471

请问fueled和fuelled都是fuel的过去分词吗

fuel[英][u02c8fju:u0259l][美][u02c8fjuu0259l]n.燃料;(为身体提供能量的)食物;(维持、增加感情的)刺激物;竞选提神(或兴奋)剂(一种健怡可乐,饮用后能使人精力充沛地从事竞选活动);vt.给…加燃料,给…加油;激起;vi.补充燃料;第三人称单数:fuels过去分词:fuelled复数:fuels现在进行时:fuelling过去式:fuelled
2023-06-16 04:50:131

英语短文改错求答案People are considering what they can make better us?

People are considering what they can make better ---what改为whether use of the two major fuel,coal and natural gas.---fuel改为fuels But coal mines are ugly,and its development has a serious effect .--its改为their Natural gas,the purer of the three fuels.---three改为two ,is also the most limited in supply ---去掉also They need very little fuel produce enormous amounts of power ---produce前面加to and they do not pollute atmosphere.atmosphere前加the Their dangers ,however,is unwilling to invest in them.--is改为are Scientists have recently turned out their attention to ---去掉out natural sources of energy:the sun,the sea,the wind and hot spring.正确,1,我看上面的。 atmosphere是不是应该改成environment啊?Their dangers ,however,is that people are unwilling to invest in them. 原文中这个句子本身就怪怪的...,0,英语短文改错求答案 People are considering what they can make better use of the two major fuel,coal and natural gas.But coal mines are ugly,and its development has a serious effect on environment.Natural gas,the purer of the three fuels,is also the most limited in supply.The answer would seem to lie on nuclear power stations.They need very little fuel produce enormous amounts of power and they do not pollute atmosphere.Their dangers ,however,is unwilling to invest in them.Scientists have recently turned out their attention to natural sources of energy:the sun,the sea,the wind and hot spring.
2023-06-16 04:50:201

Sustainable Energy amp;Fuels 这个杂志以后影响因子会到多少

ENERG FUEL的2012年的影响因子是3.047,它在工程技术类的大类分区中是二区。小类分区中,ENGINEERING, CHEMICAL小类里是二区,但在ENERGY FUELS小类里是三区,就看你们学校怎么选择了。有些学校就高不就低,会认为是二区的。
2023-06-16 04:50:271

greenergy fuels holdings 怎麽翻译

2023-06-16 04:50:361

关于ACID RAIN (做project, 要简单明白, 要英文) quick~

更新1: seelongw 你的资料可否详细少许......我要用黍做project............. Rain water with pH values lower than 5.7 is called acid rain. The Cause: ( Acid rain is caused by *** oke and gases that are given off by factories and cars that run on fossil fuels. When these fuels are burned to produce energy the sulfur that is present in the fuel bines with oxygen and bees sulfur dioxide; some of the nitrogen in the air bees nitrogen oxide. These pollutants go into the atmosphere and bee acid. ) -Sulphur dioxide It is the primary cause of acid rain. Sulphur dioxide is released from burning of fossil fuels and industrial plants. -Nitrogen oxides It is another cause of acid rain. Nitrogen oxides are released from vehicles and power plants. Effects: -Vegetation Acid rain washes away esssential nutrients that the plants are in need. In adition it makes the soil acidic and aids the release of aluminium and copper ions which are harmful to plants. -Aquatic life When pH is less than 4.5 calcium metaboli *** in fresh water fish will be affected leading to poor health and stunted growth. As a result diversity and population of some fish species will be reduced. -Building materials Acid rain will cause damage to mon building materials (such as limestone and marble) statues and monuments Many metals will bee oxidised. Iron corrodes with the presence of acid rain to form rust. The cost of maintainance of iron structures is high in highly polluted areas. 参考: .geocities/xavier114fch/03/03a Acid rain is carbonic acid. CO2+H2O=H2CO3 Its pH is lower than 5.6.That's clear. 参考: From 1 knowledges
2023-06-16 04:50:591

为什么要发展核电?

Two hundred years ago, the world experienced an energy revolution that launched the Industrial Age. Ever since then, with the rapid increase of population density, the industrialized world"s thirst for energy has more than tripled. Petroleum and natural gas are exploited as versatile and high quality energy products. Uranium is also tapped to fuel nuclear reactors and provide atomic energy.两百年前,全球经历了一场能源革命,由此引发了工业时代的到来。从那时起,随着人口密度的迅速增加,工业国家对于能源的需求成倍成倍增加。石油和天然气被看作是用途多、质量好的能源产品而得到开发,而铀也得以开发,为核反应堆提供燃料并供应原子能源。Cheap energy is the lifeblood of human society. But there is a dark side to the near monopoly of non-renewable fossil fuels like coal, oil and natural gas, along with controversial uranium, to supply our growing energy demands.廉价能源是人类社会的命脉。但是,几乎垄断煤炭、石油和天然气等不可再生化石燃料,以及有争议的铀,以满足我们日益增长的能源需求,还有一个阴暗面。The supply of these fuels is physically limited, and their use threatens our health and environment. Multiple international treaties have been proposed to limit the use of fossil fuels for this very reason. 这些燃料的供应实际上是有限的,它们的使用威胁到我们的健康和环境。为此,已经提出了多项国际条约来限制化石燃料的使用。Fears of global warming aside, burning fossil fuels releases chemicals and particulates that can cause breathing problems, cancer as well as brain and nerve damage. Nuclear energy, once hailed as"too cheap to meter", has never been economically successful when all costs are factored in.抛开对全球变暖的担忧不谈,燃烧化石燃料会释放出化学物质和微粒,导致呼吸问题、癌症以及大脑和神经损伤。核能曾被誉为“太便宜,无法计量”,但如果将所有成本都考虑在内,它在经济上从未取得成功。Furthermore, public opinion polls show nuclear energy is too closely associated with disasters like the Chernobyl reactor meltdown and the Fukushima explosion, and with the danger that: rebel insurgents could do damage with the toxic waste.此外,民意调查显示,核能与切尔诺贝利(Chernobyl)反应堆熔毁和福岛(Fukushima)爆炸等灾难有着太密切的联系,而且还存在着这样的危险:反叛分子可能用有毒废料造成破坏。Inexpensive and seemingly abundant non-renewable energy from dead plants and extinct animals fueled the 20th century economy, but geologists, climatologists,environmentalists, and many others are warning that the honeymoon may soon be over.从死去的植物和灭绝的动物身上获得的廉价且看似丰富的不可再生能源推动了20世纪的经济发展,但地质学家、气候学家、环境学家和许多其他人警告说,蜜月可能很快就结束了。扩展资料主要考察的是过去完成进行时的知识点:用法:表示过去某一时间之前一直进行的动作。过去完成进行时表示动作在过去某一时间之前开始,一直延续到这一过去时间。和过去完成时一样,过去完成进行时也必须以一过去时间为前提。I had been looking for it for days before I found it.这东西我找了好多天才找着的。They had only been waiting for the bus a few moments when it came.他们只等了一会儿车就来了。表示反复的动作。He had been mentioning your name to me.他过去多次向我提到过你的名字。You had been giving me everything.你对我真是有求必应。常用于间接引语中。The doctor asked what he had been eating.医生问他吃了什么。I asked where they had been staying all those days.我问他们那些天是呆在哪儿的。接具有“突然”之意when句。I had only been reading a few minutes when he came in.我刚看了几分钟他就进来了。She"d only been reviewing her lessons for a short while when her little sister interrupted her.她温习功课才一会儿,她妹妹就打断她了。I had been sleeping when my friend telephoned me.我正在睡觉时,我的朋友给我打电话。
2023-06-16 04:51:141

How to Solve Energy Crisis 120字的作文拜托了各位 谢谢

Man is faced with a grave problem—the energy crisis, which is becoming increasingly serious. First, with the increase in the world"s population, the demand for fuels is growing steadily. Second, the rapid development of industry and agriculture calls for an increasing amount of coal, oil and natural gas. Confronted with the energy crisis, we should take a series of effective measures to save energy. For one thing, it is high time that people all over the world realized the severe fact that our natural resources have been fixed since the earth was created. For another, the governments of all countries are supposed to lay down the rules and regulations to restrict the amount of gas used by cars. Finally, scientific researches should be encouraged to work out efficient methods of saving fuels and to seek new sources of energy. Personally, I believe that solar energy is a possible source of clean, inexpensive and abundant energy. It does not pollute the environment and costs only as much as the installation of solar panels to absorb the sun"s rays. Consequently, I"m confident that a bright future is awaiting us because solar energy will be able to help us to solve the energy crisis.
2023-06-16 04:51:321

保时捷/西门子等多家公司携手 打造全球首座近碳中和燃料工厂

易车讯 日前,我们从保时捷官方获悉,保时捷与西门子能源联合多家公司,在智利彭塔阿雷纳斯建立一座生产近碳中和燃料(eFuels)的工厂开启动工,预计2022年中启动生产。保时捷发起该示范项目,并将在其内燃机车型中使用eFuels燃料,保时捷表示:911是eFuels最适配的车型,当然,其他深受客户喜爱的经典车型也将与eFuels适配。目前,这一可再生燃料的相关测试进展十分顺利。eFuels将有望使内燃机的二氧化碳排放量减少高达 90%。此外,保时捷将从2022年起,在保时捷美孚1号超级杯的赛车中率先使用这一产自智利的燃料。“Haru Oni” 项目选址智利南部麦哲伦省(Magallanes),利用当地完美的风力气候条件和低成本的绿色风能,生产这一近碳中和的燃料。生产过程的第一步,电解器利用风能将水分解为氧气和绿色氢气;随后,将从空气中过滤出的二氧化碳与绿氢结合,形成合成甲醇,最终将其转化为eFuel。该试点工厂计划于2022年中启动生产,预期2022年可生产约13万升eFuels燃料。此后,工厂产能将分两阶段扩大,到2024年产能可达约5,500万升,2026年达到5.5亿升左右。
2023-06-16 04:51:501

__________coal, the most important natural fuels are the gas and oil.

【答案】:D“Exceptfor”一般放在句首,表示“除了…之外,若不是”;“Except”“除了”,一般放在句中;“Beside”表示“在旁边;与……相比”;“Apart from”有两种意思:(1)“除了…外(都),若不是”,相当于“exceptfor”;(2)“除了……之外(还),此外”,相当于“besides”。本句句意为:除了煤以外,最重要的天然燃料是天然气和石油。因此答案为D。
2023-06-16 04:52:151

china gdp fuels fresh doubts about reliability of official date. 这个句子没有动词吗?

doubt就是动词,怀疑的意思。doubt about,怀疑。
2023-06-16 04:52:244

英语选择题

c
2023-06-16 04:52:5114

为什么说能源是经济的命脉?

Two hundred years ago, the world experienced an energy revolution that launched the Industrial Age. Ever since then, with the rapid increase of population density, the industrialized world"s thirst for energy has more than tripled. Petroleum and natural gas are exploited as versatile and high quality energy products. Uranium is also tapped to fuel nuclear reactors and provide atomic energy.两百年前,全球经历了一场能源革命,由此引发了工业时代的到来。从那时起,随着人口密度的迅速增加,工业国家对于能源的需求成倍成倍增加。石油和天然气被看作是用途多、质量好的能源产品而得到开发,而铀也得以开发,为核反应堆提供燃料并供应原子能源。Cheap energy is the lifeblood of human society. But there is a dark side to the near monopoly of non-renewable fossil fuels like coal, oil and natural gas, along with controversial uranium, to supply our growing energy demands.廉价能源是人类社会的命脉。但是,几乎垄断煤炭、石油和天然气等不可再生化石燃料,以及有争议的铀,以满足我们日益增长的能源需求,还有一个阴暗面。The supply of these fuels is physically limited, and their use threatens our health and environment. Multiple international treaties have been proposed to limit the use of fossil fuels for this very reason. 这些燃料的供应实际上是有限的,它们的使用威胁到我们的健康和环境。为此,已经提出了多项国际条约来限制化石燃料的使用。Fears of global warming aside, burning fossil fuels releases chemicals and particulates that can cause breathing problems, cancer as well as brain and nerve damage. Nuclear energy, once hailed as"too cheap to meter", has never been economically successful when all costs are factored in.抛开对全球变暖的担忧不谈,燃烧化石燃料会释放出化学物质和微粒,导致呼吸问题、癌症以及大脑和神经损伤。核能曾被誉为“太便宜,无法计量”,但如果将所有成本都考虑在内,它在经济上从未取得成功。Furthermore, public opinion polls show nuclear energy is too closely associated with disasters like the Chernobyl reactor meltdown and the Fukushima explosion, and with the danger that: rebel insurgents could do damage with the toxic waste.此外,民意调查显示,核能与切尔诺贝利(Chernobyl)反应堆熔毁和福岛(Fukushima)爆炸等灾难有着太密切的联系,而且还存在着这样的危险:反叛分子可能用有毒废料造成破坏。Inexpensive and seemingly abundant non-renewable energy from dead plants and extinct animals fueled the 20th century economy, but geologists, climatologists,environmentalists, and many others are warning that the honeymoon may soon be over.从死去的植物和灭绝的动物身上获得的廉价且看似丰富的不可再生能源推动了20世纪的经济发展,但地质学家、气候学家、环境学家和许多其他人警告说,蜜月可能很快就结束了。扩展资料主要考察的是过去完成进行时的知识点:用法:表示过去某一时间之前一直进行的动作。过去完成进行时表示动作在过去某一时间之前开始,一直延续到这一过去时间。和过去完成时一样,过去完成进行时也必须以一过去时间为前提。I had been looking for it for days before I found it.这东西我找了好多天才找着的。They had only been waiting for the bus a few moments when it came.他们只等了一会儿车就来了。表示反复的动作。He had been mentioning your name to me.他过去多次向我提到过你的名字。You had been giving me everything.你对我真是有求必应。常用于间接引语中。The doctor asked what he had been eating.医生问他吃了什么。I asked where they had been staying all those days.我问他们那些天是呆在哪儿的。接具有“突然”之意when句。I had only been reading a few minutes when he came in.我刚看了几分钟他就进来了。She"d only been reviewing her lessons for a short while when her little sister interrupted her.她温习功课才一会儿,她妹妹就打断她了。I had been sleeping when my friend telephoned me.我正在睡觉时,我的朋友给我打电话。
2023-06-16 04:53:151

玉米是什幺食物?

If you are what you eat, and especially if you eat industrial food, as 99 percent of Americans do, what you are is "corn."Take a typical fast food meal. Corn is the sweetener in the soda. It"s in the corn-fed beef Big Mac patty, and in the high-fructose syrup in the bun, and in the secret sauce. Slim Jims are full of corn syrup, dextrose, cornstarch, and a great many additives. The “four different fuels” in a Lunchables meal, are all essentially corn-based. The chicken nugget—including feed for the chicken, fillers, binders, coating, and dipping sauce—is all corn. The french fries are made from potatoes, but odds are they"re fried in corn oil, the source of 50 percent of their calories. Even the salads at McDonald"s are full of high-fructose corn syrup and thickeners made from corn.Overproduction sooner or later leads to overconsumption, because we"re very good at figuring out how to turn surpluses into inexpensive, portable new products. Our cheap, value-added, portable corn commodity is corn sweetener, specifically high-fructose corn syrup. But we also dispose of overproduction in corn-fed beef, pork, and chicken. And now we"re even teaching salmon to eat corn, because there"s so much of it to get rid of.How do we begin to change this system? First, we all need to begin to pay attention to the Farm Bill, working to develop farm programs that allow farmers to stay in business without falling into the trap of overproduction. Most city people don"t realize the stake they have in it. They assume it"s a parochial concern of members of Congress from farm states, but it"s not. If it were called the Food Bill, I think we would all pay a lot more attention to it, and get a saner result. The Farm Bill sets out the rules of the game that everyone is playing in, whether you"re an industrial or an organic farmer, whether you"re eating industrially or not.根据实际情况调整内容,希望能够帮到你【ABC.Snap】
2023-06-16 04:53:312

可再生能源(Renewable Energy)

全球可再生能源的使用正逐渐增加,这对于应对气候变化可能是一个关键。 可再生能源,就是指能源本身可以自然再生(replennish),永不枯竭的能源,最为常见的有太阳能,风能,水能,地热(geothermal),生物能(biomass)。人类大部分使用的为化石燃料(fossil fuels),但可再生能源的使用率增长最快。 它有以下3个优点: (1)应对气候变化,可再生能源的使用不会直接产生温室气体,产生温室气体主要是在其制造过程中例如制造,安装,操作等,但在过程中排放量很小 (2)减少污染,减少对人体健康的威胁。风能水能太阳能的使用不会造成空气污染,相较于不可再生资源,地热和生物能造成的污染要少得多 (3)可靠:可再生能源永不枯竭,一旦建成,操作成本非常低,消耗的资源也是免费 但可再生能源也有以下3个缺点: (1)不能大规模发电 (2)大坝和风力发电厂的建设会破坏野生动物的生活及其迁徙模式(migration pattern),破坏生态 (3)不稳定(intermittent),太阳能和风能的利用依靠自然,电池储存能源也非常昂贵 一方面,可再生能源的使用既有挑战,但也提供一种替代化石燃料的方式,使用可再生能源不会产生温室气体,无污染,更环保。先进的科技使可再生能源易获取,可负担,更高效,应对气候变化将会变得触手可及。 (关注每天一起学习充电)
2023-06-16 04:54:201

英语全球变暖的原因

不知道你是让翻译“全球变暖的原因”成英语,还是让用英语写“全球变暖的原因”的问题,下面是“全球变暖的原因”这句话的翻译Global warming is the cause
2023-06-16 04:54:272

fossil是什么意思

fossil的意思:化石。读音:英[u02c8fu0252sl]、美[u02c8fɑu02d0sl]。释义:n. 化石;僵化的事物;顽固不化的人。adj. 化石的;陈腐的,守旧的。变形:复数 fossils。同近义词:petrification/reliquiae [古生]化石;僵化的事物;顽固不化的人。banal/trite [古生]化石的;陈腐的,守旧的。fossil造句如下:1、Archaeologists have found a large number of complete dinosaur fossils in this area.考古学家在这片区域发现了大量完整的恐龙化石。2、The fossil was reluctant to accept new things.这个老顽固一点都不愿意接受新事物。3、The Museum of Nature displays numerous fossils of ancient organisms.自然博物馆里陈列着大量古生物化石。4、Scientists have found a 67 million-year-old fossil of a snake coiled around dinosaur eggs.科学家们发现了一块6700万年前的化石 是蛇盘绕在恐龙蛋周围。5、Reliance on fossil fuels has resulted in the exploitation of the natural environment.对矿物燃料的依赖导致自然环境的过度开发。
2023-06-16 04:54:361

My Own Prison 歌词

歌曲名:My Own Prison歌手:Creed专辑:My Own PrisonMy Own PrisonCreeda court is in session, a verdict is inno appeal on the docket todayjust my own sinthe walls are cold and palethe cage made of steelscreams fill the roomalone i drop and kneelsilence now the soundmy breath the only motion arounddemons cluttering aroundmy face showing no emotionshackled by my sentenceexpecting no returnhere there is no penancemy skin begins to burnso i held my head up highhiding hate that burns insidewhich only fuels their selfish pridewe"re all held captiveout from the suna sun that shines on only somewe the meek are all in onei hear a thunder in the distancesee a vision of a crossi feel the pain that was givenon that sad day of lossa lion roars in the darkness only heholds the keya light to free frommy burden and bring me life eternallyshouldve been deadon a sunday morningbanging my headno time for mourningaint got no timeshouldve been deadon a sunday morningbanging my headno time for mourningaint got no timeso i held my head up highhiding hate that burns insidewhich only fuels their selfish pridewe"re all held captiveout from the suna sun that shines only somewe the meek are all on in onei cry out to god seeking only his decisiongabriel stands and confirmsi"ve created my own prisoni cry out to god seeking only his decisiongabriel stands and confirmsi"ve created my own prisonso i held my head up highhiding hate that burns insidewhich only fuels their selfish pridewe"re all held captiveout from the suna sun that shines only somewe the meek are all on in oneso i held my head up highhiding hate that burns insidewhich only fuels their selfish pridewe"re all held captiveout from the suna sun that shines only somewe the meek are all on in oneshouldve been deadon a sunday morningbanging my headno time for mourningaint got no timehttp://music.baidu.com/song/2824717
2023-06-16 04:55:091

coal和oil可数吗

2023-06-16 04:55:281

中石油职称英语阅读理解文章讲解

中石油职称英语阅读理解文章讲解   在今后的1000年里,我们的世界会面临哪些问题呢?下面是我整理的中石油阅读理解:21世纪的趋势,希望能帮到大家!   Trends for 21st Century 21世纪的趋势   1.What problemswillour world encounter in the next1,000 years? Social scientistsand economists, farming experts and environmentalists posethis question and examinedata and informationfrom surveys.   1、在今后的1000年里(in the next1,000 years),我们的世界会面临哪些问题呢?(特殊疑问句语序; encountervi. 遭遇)社会科学家、经济学家、农业专家和环境保护主义者提出(pose)了这个问题,并对调查所得的数据和信息(data andinformation from surveys)进行了研究。   2. In every field, experts examine changes to understandthe state of the field.To understand a country"s economy,economistscheck growthin an industrysuch assteel.To understand the state ofbusiness, they maylook atthe number of building permitsfornew houses. The informationlearnedshows increases or decreases. Important trends emergein each field.   2、各个领域的专家都通过对变化的研究来了解该领域的状况。为了了解一个国家的经济状况(To understand a country"s economy),经济学家对某个行业,如(such as)钢铁业的增长情况(growth)进行调查。为了了解行业的状况(To understand the state of business),他们可能会调查新房建造许可证的发放数量(the number of 数量;buildingpermits 施工执照;建筑许可证)。得到的资料(learned过去分词作定语,修饰the information)能显示出增长或减少的情况,各个领域的重要趋势就能体现出来(emerge vi. 显现;浮现;暴露)。   3. Population   3、人口   4. Population is importanttoevery person on Earth. Peopletendto live longerin most places. In Central Europe,however,life spanis droppingbecausehealth careis notwhatit was a few years ago. Factorsaffectinggeneral healthinclude excessive smoking,drinking ofalcoholandpolluted water supplies.   4、人口多少对地球上的每个人都很重要。在大多数地区(in most places)人们的寿命越来越长(tend to dosth. 倾向于;往往会)。但在中欧,由于卫生保健(health care)不如前几年,人的寿命(life span)正在缩短(is dropping)。影响大众健康(affecting general health)的`因素包括吸烟过度(excessive smoking),酗酒以及饮水污染(alcohol n. 酒精;polluted adj. 受污染的; watersupplies 供水)。   5. The population explosiononour planethas been increasingat an alarming ratebutthe percentage of increaseis decreasing.One out of every five peopleon Earth is Chinese,yetChina"s growth ratehas slowed.Asthe number of womengoingto schoolincreases, the growth rate declines.   5、我们星球上的人口的爆炸正在以惊人的速度(at an alarmingrate)加剧着,不过增长的百分比(the percentage of increase)在减小。地球上每五个人中就有一个(One out of every five people)是中国人,但中国的人口增长速度己经减慢了。随着(as)受教育(going to school修饰the number ofwomen)的妇女越来越多,人口增长率正在下降。   6. FoodProduction   6、粮食生产   7. The production of grainseemsto be decreasingmainlybecauseof climate changes. Natural disasterslike storms and floodshavewashed awaymany crops.   7、谷物产量似乎正在减少,这主要是由于气候的变化。暴风雨(storms)和洪水(floods)这类自然灾害(natural disasters)毁掉了许多庄稼。(wash away 冲走;冲垮)   8.With lessland forcattle and sheep,less meat like beefand lamb is being produced. Production of chicken, turkey and fishhas increased,however. The amount of ocean fishhas not increased,butfish farm productionhas.   8、由于(with)可供饲养牛羊的土地减少了,牛肉和羊肉生产越来越少(less meat like beef and lamb is beingproduced现在进行时被动语态)。不过鸡肉、火鸡肉和鱼的产量提高了。但海鱼(ocean fish)的产量没有提高,只是人工养鱼场(fish farm)的产量提高了。   9. Fish farming is veryefficient:producing a kilogram of fish utilizesless than2 kilograms of feed.In contrastittakes2.2 kilograms of feedtoproduce 1 kilogram of chicken. Onekilogram of beefrequires7 kilograms of grain. People,therefore, may eatless red meatinthe future andmore fish.   9、养鱼业(fish farming)的生产效率相当高(efficientadj. 有效率的):生产1公斤鱼只需要不到2公斤的饲料(less than 少于;小于;不超过;utilize vt.利用),而(in contrast 与此相反;相比之下)生产1公斤鸡肉需要2.2公斤的饲料,生产1公斤牛肉需要7公斤谷物(grain)。因此,人们将来可能会少吃红肉(牛肉、羊肉等)(less red meet),多吃鱼类(more fish)。   10. Energy   10、能源   11.Usingfossil fuelsfor energyhas not changed very muchbutwindenergy useis increasingsignificantly. Denmark, Germany, the Netherlands, Britain, and America havelarge wind power projects. China, India,Mexico, New Zealand, and Ukraine are also developing wind power.   11、以化石燃料为能源的情况(Using fossil fuels for energy)没有发生多大变化,但是(but)对风力的利用正越来越受到重视(is increasingsignificantly)。丹麦、德国、荷兰、英国和美国都有大型风力发电项目(large wind power projects)。中国、印度、墨西哥、新西兰和乌克兰也正在开发风力发电。   12. Energy fromnuclearpower plantsissteadily increasingbutthe problem ofdangerous wastelimits growthin many regions.Becausemany electrical companies consider nuclear energytoo expensive,the trend istowardless dangerous sources of energy.   12、核电厂(nuclear powerplants)提供的能源在稳步上升,但因为核电厂的有害废料(dangerous waste)问题,在许多地区其发展受到限制。由于许多电力公司都认为核能代价太大(too expensive太昂贵),因此总体趋势是发展危险性小的能源(less dangerous sources of energy)。   13.Whilenatural gasuse is increasing,use of coalas fuelis decreasing. Naturalgas, an outstandingenergy source,can be used to heat homes, make electricity, and power cars.   13、随着(while)天然气使用量的增长,煤炭作为燃料的使用量(use of coal as fuel)正在减少。天然气这种优质的(outstandingadj. 杰出的)能源可以用于家庭取暖、发电和驱动汽车。(be used to dosth. 被用来做…)   14. Economics   14、经济   15.Ascountriesaround the world trademore withone another,more products are available.Butthefast development of the world economywillbring aboutmany new problems.Withfewer trees, the paper industry is producing more paper fromrecycled materials.However,the paper-making processunfortunately damages the planetasit useslarge amounts of water, burnsfossilfuelsand produces large amounts ofchemicalwaste.   15、随着(as)世界各国之间贸易量的增加(one another 彼此,通常为三者以上;each other 彼此,通常为两者之间; trade vi. 交易),可买到的产品越来越多(be available 可供使用的)。但世界经济的快速发展会带来许多新问题(bring about 引起;导致)。由于树木减少,造纸厂更多地依靠再生材料(recycled materials)造纸,但不幸的是(unfortunately),造纸工艺(the paper-making process)也对我们的星球造成损害(damages),因为(as)它要用大量的水,燃烧大量的化石燃料(fossil fuels),而且还会产生大量的化学废料(chemical waste)。   16. Automobile productionisdown,whilebicycle productionis up. Crowded highways,high gasoline costs, and ease of bicycling are three reasons forthis change.   16、汽车产量在下降,而(while)自行车产量在上升。导致这一变化的三个原因是:高速公路拥挤不堪(crowded adj.拥挤的),汽油价格昂贵,而骑自行车出行轻便自如(ease n. 轻松;悠闲)。   17. Health   17、健康   18.Three major health trendsexistaswe begin the new century. Health careis better thanever.Medical research breakthroughs includefinding tumors earlyand saving livesthrough CAT scans and surgery. Surviving cancer is a new trend. HIV/AIDS,however,is spreadingquicklyall over the world.   18、在我们迈入新世纪之际,呈现出了三个主要的健康趋势(three major health trends)。(1)卫生保健工作不断改善(better thanever 好于以前),(2)医学研究领域有新的突破(breakthrough n. 突破;突破性进展),包括利用CAT扫描(即计算机化X射线轴向分层造影扫描)和外科手术(surgery n.)来及早发现肿瘤并挽救生命(findingtumors early and saving lives)。癌症病人的生存率得到提高也是一个新趋势。然而,艾滋病(HIV/AIDS)却正在全世界迅速蔓延(spread vi. 传播)。   19. The third major trend istowardan attitude of indifference. Peopleseem to have forgottenwaysto keep diseases under control.Althoughmedical sciencehad achievedcontrol overseveral dangerous diseases,some are returning. For instance, tuberculosis, once a dangerous killer, was cured. Now the disease is appearingagain.   19、(3)第三个趋势是人们的态度变得越来越无动于衷。人们似乎已经忘记了(seem to have forgotten 不定式的完成时形式)如何控制疾病(to keep diseases under control不定式作定语,修饰ways)。虽然(although)医学早已能够控制若干危险的疾病(control over 控制;支配;征服),有些病却正在卷土重来(some are returning)。例如(for instance),曾经是危险杀手(once a dangerous killer)的肺结核原本已被消灭(was cured),而现在这种疾病又死灰复燃了。   20. Nature   20、自然   21. Pollutioncontinuesto affect our forests and water.The bird population is decreasingbecause ofoil spills and spreading cities. Seas and oceans are changing.Treesarecut down, more soilwashesaway, and water qualityis affected.Many of these trees are in our rain forestswhere thick areas of plants and trees, home for many birds andanimals,aredisappearing.   21、污染不断破坏着我们的森林和水源(continue to do sth.; continue 后接不定式作宾语)。由于(because of)海上石油泄漏(oil spills; spill n. 溢出)和城市不断扩大,鸟类的数量正在减少。海洋在改变,树木遭砍伐(被动语态;cut-cut-cut;cut down 消减;砍倒;wash away 冲走),越来越多的泥土被冲走,水质(water quality)受到了影响(被动语态)。许多热带雨林中的树木遭到砍伐,那里茂密的(thick)植物和树木原本是许多鸟类和动物的家园,现在却正在消失。   22. Conclusion   22、结论   23.Ourchallengesfor this new centuryare clear. The problems ofnumerousinhabitants onthis small planetwill continue to be important toeach of us. These challenges showthatall of usneedtobeinvolved insolving the problems.May wefind new waystoaccomplish the task?   23、在新世纪中,我们所面临的挑战是显而易见的(clear)。在这个小小星球上(on this small planet)的很多人面对的问题(the problems of numerous inhabitants; numerousadj. 许多的; inhabitantn. 居民;居住者)仍将是关系到我们每个人(each of us)的重大问题。这些挑战表明,我们所有人(all of us)都必须参与解决这些问题(need to do sth. 需要做某事;be involved in参与,被卷入…中;涉及到…)。但愿我们(may we)能找到新的途径去完成这一使命(to accomplish the task不定式作定语,修饰new ways)。   关于本文的两点说明:   在做“阅读理解题”时,需要特别注意but, however,while, although等“转折连词”,理解它们前、后句子所要表达的意思。   as在本文中出现了几种不同用法,as可是考试中的“大热门”。   conj.(连词):因为;随着;虽然;当…时   As(随着)the number of women going to school increases, the growth rate declines. (第5段)   As(随着)countries around the world trade more with one another, more products areavailable. (第15段)   However, the paper-making processunfortunately damagesthe planetas(因为)it uses large amounts of water, burns fossil fuels and produces large amountsof chemical waste. (第15段)   Three major health trends existas(当…时候)we begin the new century. (第18段)   prep.(介词):当作;如同;以…身份   To understand a country"seconomy, economists check growth in an industrysuch as(比如)steel. (第2段)   While natural gas useis increasing,use of coalas fuel(作为燃料)is decreasing.(第13段)   练习:   1. encounterin the next 1,000 years?   A. What problems will our world B.What problems our world will   2. The production of grain mainly because of climate changes.   A. seems to be decreased B.seems to be decreasing   C. seems to decrease D.seems to is decreasing   3. Natural disasters like storms and floods have washed amany crops.   A. away B. out C. in D. to   4. With less land for cattle and sheep, less meat like beef andlamb .   A. are being produced B.is producing   C. is being produced D.is produced   5.However, the paper-making process unfortunately damagesthe planet it uses large amounts of water, burns fossilfuels and produces large amounts of chemical waste.   A. as B. so C.if D. with   6. Automobile production is down, bicycle production is up.   A. which B. while C. where D.when   7.The third major trend is toward an attitude of .   A.difference B. indifferent C. indifference D. different   8.These challenges showthat all of us solving the problems.   A.need to are involved in B.need to be involved   C.needs to be involved in A.need to be involved in ;
2023-06-16 04:55:351

不胜感激!麻烦高人帮我翻译一下!!!

上涨关注全球变暖的影响, 空气污染与矿物燃料库存下降导致更多的兴趣和风能等可再生能源 太阳能源. 发电前景,只有用氢燃料或合成再生能源是好的. 在某些方面, 包括风力发电、太阳能技术,为开发利用水制氢电解. 纯净氢气可作为汽车燃料的燃料电池,正在迅速改善现今 或转化为液体燃料合成等过程用费托反应(干,1999年). 充足影响评价引入再生技术需求包括环境影响评估、 经济学生产与利用总体生命周期(从"从摇篮到坟墓") 包括再生厂兴建及营运阶段. 生命周期评估(LCA)是这种评估方法, 是一套系统化、程序编制、审查、投入和产出的能源和原料 有关环境的好坏直接归因于产品或服务体系运作的整个生命周期(标准化、 1997). 以前我们报道链路容量(granovskii等. ,2006a,乙; 丹尼尔和罗森2002年),中国气象局在文学、 风力、太阳能发电技术的电力和氢气, 以及汽油和天然气制氢原油. 主要技术措施的研究周期受雇于我国利用输送原油、天然气、 列无花果和再生技术. 1. 通过引入资本投资效益指标(granovskii等. ,2006a) 结果表明"再生"氢经济吸引力较低(即 它具有较高的成本),比经改革天然气制造氢气. 本文利用氢气和电力成本不同, 依靠自己的技术用于生产,加上空气污染排放量的数据周期研究 评估成本消减排放工业规模实施风能和太阳能系统. 数值计算是用语用引进的温室气体排放上缓解我国纸张(granovskii等. ,2006c).翻译仅做参考啊...
2023-06-16 04:56:064

乙醇燃料的补充资料

撰文 马修·L·沃尔德(Matthew L. Wald)翻译 赵学庆如果你有机会来到美国南达科他州苏福尔斯机场的候机大楼,不妨趁着行李运到前的空闲四处参观一下。一辆绿白相间的印地赛车(Indy)穿梭在几条行李传送带之间,车身上的贴花图案标明它以乙醇(ethanol)作为燃料;在租车公司的摊位前,有一个醒目的标志,提醒客户不要给出租车加注E85——当地出售的超级乙醇混合燃油,这种混合燃油会损坏出租车引擎,因为当地的出租车并不是为这种混合燃油而设计的。乙醇之乡苏福尔斯,是美国将碳水化合物(carbohydrate)转变为碳氢化合物(hydrocarbon)的推广中心。在美国,乙醇热潮持续高涨,甚至开启了一个燃油转换过渡期,规模之大,恐怕只有40年前电力行业建造的数百座核电厂方可媲美。2005年8月,美国国会通过了一项重要能源法案,要求到2012年,将乙醇年产量从2005年时的40亿加仑左右增加到75亿加仑(1加仑约等于3.8升),以便取代进口燃油。业界人士认为,在美国政府的税收优惠和补贴政策扶持下,特别是如果油价仍然居高不下,那么这一目标的实现有望大大提前,因为将农作物转化为乙醇的成本,远远低于2006年秋天的汽油零售价——每加仑2.50美元。实际上,据美国可再生燃料协会(Renewable Fuels Association)介绍,2006年美国的乙醇产量超过50亿加仑。与每年约1,400亿加仑汽油和柴油消耗量相比,虽然这一数量还显得微不足道,但是乙醇产量在一年内却增长了50%。美国能源部(DOE)负责能效和可再生能源的副部长安迪·卡斯纳(Andy Karsner)称,由于高油价增加了乙醇的市场吸引力,开发商纷纷修建乙醇工厂。他断言美国将出现一个乙醇繁荣期,“类似于19世纪50年代宾夕法尼亚州的石油热”。这股热潮真能给人们带来好处吗?实际上,我们生产乙醇的方式并没有多大优势。美国所有的商业乙醇燃料都用玉米粒制造,采用能量密集型的生产方式。一些研究表明,炼制一加仑乙醇所耗用的能量,甚至高于它燃烧时所提供的能量。即使一些支持玉米乙醇的研究,也只能证明它的能源净收益微乎其微;另一种持反对意见的研究则表明,同原油-汽油循环比起来,玉米-乙醇循环在减少温室气体方面的作用,几乎可以忽略不计。在乙醇生产厂商完善纤维素(cellulose)乙醇生产方法之前,玉米乙醇毫无经济或环保意义。纤维素是组成玉米秆、树木及其他草本植物草茎的木质成分,对它的管理和收割只需要耗费较少的能源。但是,虽然科学家知道某些基于生物学的加工方法,可以转化纤维素中的糖分,但是一些试图生产纤维素乙醇的公司,迄今也未能形成商业规模的批量生产。甘蔗是最佳植物能源,它所拥有的可用于制造乙醇的糖分含量,远远高于玉米秆和草本植物中的含量,但是美国缺乏巴西那样的气候条件和廉价劳动力,无法对甘蔗进行开发利用。要实现用纤维素生产乙醇,就需要对农业生产和工业生产工艺进行重大改进。否则,乙醇仍将是几乎没有任何净收益的、难于利用的产品,美国也将继续依赖进口石油。玉米乙醇:可再生能源?不少人一直把用玉米生产的乙醇视为“可再生能源”。据最新调查统计,生产一加仑玉米乙醇可谓“入不敷出”,所耗用的其他能量(如天然气、柴油)几乎接近或甚至高于它所产生的能量。况且,各生产环节中排放的二氧化碳,也有悖于“清洁能源”的初衷。美国生产的大部分乙醇,都被用作汽油的一类添加剂,它可以按1∶9的比例与汽油混合使用,这是普通引擎能够使用这种混合燃油而不遭致损坏的最高比例。在有些地区,主要是在农业区,驾驶员能够购买到E85混合燃油,这种混合燃油含有85%的乙醇和15%的普通无铅汽油(unleaded regular gasoline),主要供专门设计的“柔性燃料”(flexible fuel)引擎使用。对于普通引擎而言,乙醇与蒸馏酒中所含的酒精一样,会腐蚀掉引擎和燃油系统中的密封件。数百万辆汽车都装备了这种引擎(不过许多车主都并不知情),然而E85销售点却只有几百个,而且目前这一燃油供应链的扩展速度极为缓慢。尽管如此,玉米乙醇仍然发展迅猛,部分原因在于,在美国华盛顿哥伦比亚特区,它拥有一支由农业州参议员和众议员组成的强有力的两党支持者队伍。此外,它还得到了一些非农业州地区人士的支持,这些人认为美国应减少对进口石油的依赖。由于玉米能年复一年栽种和收获,鼓吹者便认为乙醇是一种可再生燃料。美国可再生燃料协会还印发了一本装帧精美的宣传小册子,暗示每年消耗75亿加仑乙醇,就意味着少进口1.79亿桶外国石油。这一水平大约相当于美国15天的石油进口量——虽然不能“药到病除”,但至少开了一个好头。然而,这只是玉米乙醇的表面风光而已,实际上它仍有不少问题。第一个问题在于,一标准桶(42加仑)乙醇只相当于大约28加仑汽油,因为一标准桶普通无铅汽油含有约11.9万英热单位(Btu,1英热单位约为1,055焦耳)能量,相比之下,一标准桶乙醇只含有8万英热单位能量。因此你给油箱加满E85混合燃油时,其实只相当于加了2/3油箱的汽油。即使一加仑乙醇的售价更为便宜,但要行驶一加仑汽油所能行驶的里程,你必须购买更多的乙醇。第二个问题则在于,美国缺少生产乙醇所需要的某些资源。美国的玉米资源确实丰富,玉米地从苏福尔斯机场四周一直连绵延伸到远方。但制造乙醇需要耗费大量的天然气。燃油用乙醇的生产方法与酒用乙醇的制造方法基本相同。酵母(yeast)消耗掉糖分而释放出酒精和二氧化碳,所获得的产物经过蒸馏,让酒精蒸发,然后将酒精收集起来加以冷凝。各个生产环节都需要用天然气来加热。目前,生产一加仑乙醇(含有8万英热单位能量),需要大约3.6万英热单位的天然气。20世纪90年代,美国国会力图通过一些法案,鼓励乙醇制造厂商生产更多乙醇,支持一些农业州的经济发展。当时天然气较为便宜,每百万英热单位的天然气平均价格约为3美元,而到2005年冬天,天然气价格已飚升至14美元。此外,高需求量必然会刺激天然气价格向上攀升。虽然乙醇支持者认为乙醇燃料是未来可持续能源的一个组成部分,但是耗费的大量天然气,却是不可再生的,甚至难以支持现在的需求。美国乙醇产量正在下降,加拿大乙醇产量也满足不了人们的消费需求。具有讽刺意味的是,为了制造“本土”乙醇,美国将不得不从北美洲以外的地区进口更多的天然气。一些乙醇生产厂商正在用煤替代天然气,但这又有悖于人们对于清洁能源和可再生能源的定义。烧煤会释放大量的二氧化碳,这样一来,使用乙醇燃料的汽车对气候变化造成的影响,反而要比原来使用普通汽油的汽车严重得多。理论上讲,一家乙醇生产厂为了生产乙醇,可从电力公司购买电力来提供生产所需热量,但是对于许多美国电力公司来说,那样就可能意味着,要燃烧更多的煤和天然气来满足这一用电需求。生产乙醇还需要一些其他形式的能源。乙醇不像汽油或柴油那样可以用管道来输送,因为这类输送管道很容易进水,虽然水不会与汽油或柴油混合,但是却能与乙醇混合,一旦混合就会破坏乙醇的燃料热值。因此,为了将乙醇运往市场,就需要动用卡车,有时还需要长途运输,这就必须消耗柴油。此外,联合收割机收割玉米作物也要耗用柴油,而种植玉米所用的化肥,其生产过程也离不开天然气。上述一些问题成了计算乙醇“净能量平衡”的关键因素。这一话题引起了人们激烈争论。2005年,美国康奈尔大学的农学教授戴维·皮门特尔(David Pimentel)宣称,制造一加仑乙醇所耗费的能量,超过了它燃烧时产生的能量。一些持相反意见的人则反驳说,皮门特尔几乎没有考虑乙醇副产品的价值,其中一些能够用作家畜饲料(可取代栽种部分用作饲料的玉米),而且他将一些与乙醇无关的能源成本也统统算到了乙醇头上,甚至包括了乙醇工厂工人的用餐成本。但是,这些分析家都一致认为,即使乙醇的净能量值为正,增益也十分微小。同一年,美国生物科学学会(American Institute of Biological Sciences,缩写为AIBS)的一份重要研究报告断定,用玉米生产的乙醇所能产生的能量,仅比生产玉米乙醇所需的能量多出10%左右。与巴西用甘蔗生产乙醇高达370%的能量产出相比,这一数据显然微不足道。据美国阿尔贡国家实验室运输研究中心的环境科学家王全录(Michael Wang)估算,考虑到所有的生产环节——玉米地施肥、玉米收割、将玉米淀粉浆蒸馏为酒精等等,每生产100万英热单位的乙醇,需要耗用74万英热单位的化石燃料。虽然乙醇一直被当作为农产品推广,但它基本上还是化石燃料的产物。在减少温室气体方面,乙醇带来的好处更是微乎其微。在2006年1月出版的《科学》杂志上,美国加利福尼亚大学伯克利分校的能源与资源助理教授亚历山大·E·法雷尔(Alexander E. Farrell)撰文宣称,乙醇在减少温室气体方面的作用“难以确定”。在考察了各种研究报告之后,法雷尔及其合作撰稿人断定,在排放大气污染物方面,用天然气生产的乙醇比汽油产品要稍好一些,但是用煤生产乙醇却更糟糕。燃烧一加仑汽油释放大约20磅二氧化碳(1磅约为450克),其中包括了来自汽车引擎和炼油厂的排放量。尽管乙醇的这一可比数据尚存争论,但到底是稍好一点还是更糟一些,主要取决于乙醇的生产过程。以限制二氧化碳排放量为理由,鼓吹乙醇燃料的说法是靠不住的。
2023-06-16 04:56:261

Carbon dioxide__________from burning fuels is the most common of the so-called greenhousegases.

【答案】:D从燃烧的燃料所中产生的二氧化碳是所谓的二氧化碳温室气体中最常见的。过去分词produced表被动。故选D。
2023-06-16 04:56:391

能源结构调整的英文

Strategic role of lng in china " s energy restructuring 在我国 能源结构调整 中战略作用的思考 The study on countermeasures for fire safety in the process of adjustment of energy structure in china 我国 能源结构调整 过程中的消防安全对策研究 This paper introduce , on the basis of consulting a lot of data , during to the question of shortage of energy source in the world and adjusting to structure of energy source under the new condition of 21 century and the question of tar during the crop stacks - based biomass gasification 本课题是在查阅大量资料的基础上,针对世界范围内能源缺乏问题和21世纪新形势下的 能源结构调整 问题以及生物质秸秆气化过程中产生的焦油等问题而提出的。通过查询可知目前国内外还没有人涉足这方面的研究。 Environment protection being a focus in big cities , to meet the energy needs mainly by clean energy products is a prevaipng trend . to promote energy conservation , heating system and charge popcy is facing great reform . air - conditioner being necessity , the city electricity supply systems are confronted by peak load 当前我国大城市关注环保问题,城市 能源结构调整 势在必行;民用供暖“分户计量按热取费”制度的建立与实现,是调动用户节能积极性实现供暖节能目标的关键之所在;伴随居民生活水平的提高,空调迅速普及给城市电网带来巨大压力。 Chinese taipei " s report on apec pledge and review is submitted as attachment 2 : ( 1 ) potential and target of energy conservation , ( 2 ) adjustment of energy structure , ( 3 ) estabpsh energy conservation programs for industrial , transportation , mercial and residential , and power sectors , ( 4 ) research and development of energy - saving technology , ( 5 ) education and guidance 有关推动能源效率与节约的承诺与评议进展报告事项有:能源节约的潜力与目标、 能源结构调整 、成立制造业交通商业住宅及电力事业的能源节约计画、节能技术研发、民众教育及宣导。 We can e to the conclusion : cost ratio of motor fuels and total pfecycle cost , after the pfe cycle asses *** ent of automobile substitute fuels based on natural gas in chongqing . we can see the economic of each automobile substitute fuel . the suggestion of energy construction adjustment in chongqing can be conclude according these conclusions 最后文章讨论了生命周期评价在能源产品开发中的具体应用,通过对重庆地区汽车代用燃料的各生产环节成本及生命周期总成本的分析,讨论各种替代燃料的经济性及未来的经济前景,并根据分析结论对重庆地区 能源结构调整 提出了相应的建议。
2023-06-16 04:56:461

化学元素 碳 英文介绍

C + O2 =点 燃=CO2 剧烈燃烧、白光、放热、使石灰水变浑浊 2C +O2=点 燃=2CO 煤炉中常见反应、空气污染物之一、煤气中毒原因 一氧化碳在氧气中燃烧:2CO + O2 =点 燃= 2CO2 蓝色火焰 煤气燃烧 甲烷在空气中燃烧:CH4 + 2O2 =点 燃 =CO2 + 2H2O 蓝色火焰、放热、甲烷和天然气的燃烧 酒精在空气中燃烧:C2H5OH + 3O2 =点 燃= 2CO2 + 3H2O 蓝色火焰 木炭还原氧化铜:C + 2CuO 高 温 2Cu + CO2↑ 水蒸气通过灼热碳层:H2O + C 高 温 H2 + CO 焦炭还原氧化铁:3C + 2Fe2O3 高 温 4Fe + 3CO2↑ 其他 甲烷在空气中燃烧:CH4 + 2O2 点 燃 CO2 + 2H2O 酒精在空气中燃烧:C2H5OH + 3O2 点 燃 2CO2 + 3H2O 一氧化碳还原氧化铜:CO + CuO △ Cu + CO2 一氧化碳还原氧化铁:3CO + Fe2O3 高 温 2Fe + 3CO2 二氧化碳通过澄清石灰水(检验二氧化碳):Ca(OH)2 + CO2 ==CaCO3↓+ H2O 氢氧化钠和二氧化碳反应(除去二氧化碳):2NaOH + CO2 == Na2CO3 + H2O 石灰石(或大理石)与稀盐酸反应(二氧化碳的实验室制法): CaCO3 + 2HCl === CaCl2 + H2O + CO2↑ 大理石与稀盐酸反应:CaCO3 + 2HCl === CaCl2 + H2O + CO2↑ 碳酸钠与稀盐酸反应: Na2CO3 + 2HCl === 2NaCl + H2O + CO2↑ C + CuO 高 温2Cu + CO2↑ 黑色逐渐变为红色、产生使澄清石灰水变浑浊的气体,冶炼金属 CuO +CO △ Cu + CO2 黑色逐渐变红色,产生使澄清石灰水变浑浊的气体 冶炼金属 CO2 + H2O = H2CO3 碳酸使石蕊变红 证明碳酸的酸性 H2CO3 △ CO2↑ + H2O 石蕊红色褪去 Ca(OH)2 + CO2= CaCO3↓+ H2O 澄清石灰水变浑浊 应用CO2检验和石灰浆粉刷墙壁 CaCO3 + 2HCl = CaCl2+ H2O + CO2↑ 固体逐渐溶解、有使澄清石灰水变浑浊的气体 实验室制备二氧化碳、除水垢
2023-06-16 04:56:551

请人翻译一篇英语考试文章,翻译完追加200分(先上分没人答的话分就白上了),谢谢。

这是前部分的人工翻译。。。如果可以的话我再翻最后的一段:E:在1998年,交通运输方面将被责备因为它占了28%的二氧化碳(最主要的温室气体)排放。 据最新估计,如果不采取措施扭转交通增长趋势,从运输的二氧化碳排放量,可以预计在与记录中1990年的739万亿吨相比,2020年将增长约50%,至11130亿公吨,其中公路运输是主要的罪魁祸首,因为其对于二氧化碳排放量的贡献率达84%。因此,使用替代燃料和提高能源效率既是生态必要性也是技术的挑战。问:同时,需要用更大的努力来实现模式转变。这种变化不能一蹴而就,这条路在过去的半个多世纪里不断恶化。这使得今天的铁路货运服务面临边缘化(只有8%的市场份),国际货物列车以平均速度18公里/小时的速度挣扎。(以下)出现了三种可能的方法。G:第一种方法将包括通过独资定价致力于公路运输。此选项将不会和其他运输方式的配套措施的协同。在短期内,由于货运车辆的载货量比率较高,以及由于运输价格的上升,预计乘客车辆的使用率会有所下降,从而抑制公路运输的增长。 然而,缺乏可用于振兴其他运输方式的措施将导致更可持续的运输方式不可能拿起接力棒。
2023-06-16 04:57:041

英语演讲稿带翻译:应对日益严重的气候变化威胁

考 网英文写作翻译频道为大家整理的英语演讲稿带翻译:应对日益严重的气候变化威胁,供大家参考:) 奥巴马在例行的周六演说中告诉美国人民,他几天前推出以应对日益严重的气候变化威胁问题的计划。他的计划将减少碳污染,保护我们的国家,免遭气候变化的影响,并引领世界在气候变化灾害中协调一致。 奥巴马每周演讲2013-06-29:Confronting the Growing Threat of Climate Change 中英对照演讲稿 Hi everybody. A few days ago, I unveiled a new national plan to confront the growing threat of a changing climate. 大家好。几天前,我推出了一个新的国家计划应对日益增长的气候变化威胁。 Decades of carefully reviewed science tells us our planet is changing in ways that will have profound impacts on the world we leave to our children. Already, we know that the 12 warmest years in recorded history have all come in the last 15, and that last year was the warmest in American history. And while we know no single weather event is caused solely by climate change, we also know that in a world that"s getting warmer than it used to be, all weather events are affected by it – more extreme droughts, floods, wildfires, and hurricanes. 几十年反复审视的科学告诉我们我们的星球正在改变,这种改变将对我们留给我们的后代的世界产生重大的冲击。我们已经知道历有记录的最热的12年都发生在最近的15年里,去年是美国历最热的一年。尽管我们知道没有一个天气事件是地由气候变化造成的,我们还知道在一个比过去变暖的世界所有天气事件—更多的大旱、洪水、森林大火和飓风,都受它影响。 Those who already feel the effects of a changing climate don"t have time to deny it – they"re busy dealing with it. The firefighters who brave longer wild fire seasons. The farmers who see crops wilted one year, and washed away the next. Western families worried about water that " s drying up. 那些已经感觉到气候变化影响的人们没有时间否认了—他们正在忙于应对它。消防队员们在更长的森林大火季节奋勇灭火。农场主们眼看着他们的庄稼一年枯萎,另一年水淹。西部的家庭担心水资源枯竭。 The cost of these events can be measured in lost lives and livelihoods, lost homes and businesses, and hundreds of billions of dollars in emergency services and disaster relief. And Americans across the country are already paying the price of inaction in higher food costs, insurance premiums, and the tab for rebuilding. 这些事件的损失是用人民的生命财产损失、企业和住房的损失和数以千万计的紧急救援和灾难救济支出来度量的。全国人民已经在以更高的食品价格、保险金和重建开销为这些行动付出了代价。 The question is not whether we need to act. The question is whether we will have the courage to act before it"s too late. 问题不是我们是否需要行动。问题是我们是否有勇气防止病入膏肓。 The national Climate Action Plan I unveiled will cut carbon pollution, protect our country from the impacts of climate change, and lead the world in a coordinated assault on a changing climate. 我推出的第一号全国气候行动计划将减少碳污染,保护国家不受气候变化冲击,引领世界协调地应对气候变化。 To reduce carbon pollution, I"ve directed the Environmental Protection Agency to work with states and businesses to set new standards that put an end to the limitless dumping of carbon pollution from our power plants. We " ll use more clean energy and waste less energy throughout our economy. 为了减少碳污染,我已经责成环境保护署与各州和企业合作制定新的标准来结束发电厂无休止碳污染排放。我们将使用清洁能源和无废物能源来驱动我们的整个经济。 To prepare Americans for the impacts of climate change we can"t stop, we " ll work with communities to build smarter, more resilient infrastructure to protect our homes and businesses, and withstand more powerful storms. 为了让美国人民准备好应对无法制止的气候变化的冲击,我们将与社区合作打造更加智能化、更加弹性的基础设施来保护我们的住房和企业、使其可以抵御更强的风暴。 And America will lead global efforts to combat the threat of a changing climate by encouraging developing nations to transition to cleaner sources of energy, and by engaging our international partners in this fight – for while we compete for business, we also share a planet. And we must all shoulder the responsibility for its future together. 美国将通过鼓励发展中国家实现向清洁能源的转型,共同参与国际合作应对来领导全球应对气候变化威胁的努力—因为尽管我们的企业在竞争,我们仍然共享一个地球。我们必须共同承担它的未来的责任。 This is the fight America can and will lead in the 21st century. But it will require all of us, as citizens, to do our part. We"ll need scientists to design new fuels, and farmers to grow them. We"ll need engineers to devise new technologies, and businesses to make and sell them. We"ll need workers to man assembly lines that hum with high-tech, zero-carbon components, and builders to hammer into place the foundations for a new clean energy age. We " ll need to give special care to people and communities unsettled by this transition. And those of us in positions of responsibility will need to be less concerned with the judgment of special interests and well-connected donors, and more concerned with the judgment of our children. 美国能够也应该领导21世纪的这场战斗。但是它要求我们所有人,作为公民,尽我们的义务。我们需要科学家们设计新燃料、农场主们种植它们。我们需要工程师们构思新技术,企业生产和销售它们。我们需要工人们操作满是高技术、零碳的部件的装配线,建筑工人们为新清洁能源时代奠基。我们需要给予在这场转型中处于困境的人们和社区特殊的关爱。而我们这些在责任岗位的人们需要少考虑特殊利益集团和神通广大的捐赠者们的公平,多考虑孩子们的公平。 If you agree with me, I"ll need you to act. Educate your classmates and colleagues, your family and friends. Speak up in your communities. Remind everyone who represents you, at every level of government, that there is no contradiction between a sound environment and a strong economy – and that sheltering future generations against the ravages of climate change is a prerequisite for your vote. 如果你们赞同我,我想要你们行动。开导你们的同学和同事们、家人和朋友们。在你们的社区呼吁。提醒每一个在每一级政府代表你们的人健全的环境和强劲的经济没有矛盾—保护未来的后代不受气候变化的报复是你们投票的前提。 We will be judged – as a people, as a society, and as a country – on where we go from here. The plan I have put forward to reduce carbon pollution and protect our country from the effects of climate change is the path we need to take. And if we remember what"s at stake – the world we leave to our children – I"m convinced that this is a challenge that we will meet. 我们将作为一个民族、一个社会和一个国家就我们从此走向何方而接受世人的评判。我推出的一号计划旨在减少碳污染、保护我们的国家不受气候变化的冲击是我们的必由之路。如果我们还记得什么至关重要—我们留给后代的世界—我就对这是我们能够战胜的挑战充满信心。 Thank you, and have a great weekend. 谢谢,周末快乐!
2023-06-16 04:57:111

gas oil和diesel有什么区别?

Gas Oil确实如热心网友所讲,是原油炼化过程中的一种产品。介于煤油和润滑油之间。Gas Oil 与 Diesel是包含关系,即:Diesel是一种Gas Oil。参考:Major products of oil refineries:-Most products of oil processing are usually grouped into three categories: light distillates (LPG, gasoline, naphtha), middle distillates (kerosene, diesel), heavy distillates and residuum (fuel oil, lubricating oils, wax, tar). This classification is based on the way crude oil is distilled and separated into fractions (called distillates and residuum) u2022 Liquid petroleum gas (LPG) u2022 Gasoline (also known as petrol) u2022 Naphtha u2022 Kerosene and related jet aircraft fuels u2022 Diesel fuel u2022 Fuel oils u2022 Lubricating oils u2022 Paraffin wax u2022 Asphalt and Tar u2022 Petroleum coke
2023-06-16 04:57:193

室内设计证书有哪些?

有室内设计师资格证、室内装饰设计师证(初级、中级、高级)、室内建筑师证、国际室内设计师证等。其中,室内设计师证分为高级、中级和助理室内设计师三个等级,由中国室内装饰协会CIDA颁发,适用于从事室内、建筑、园林、展示设计等相关专业人员报考的资格证书。高级室内设计师是颁发国家一级职业资格证书;中级室内设计师是颁发国家二级职业资格证书;助理室内设计师是颁发国家三级职业资格证书。任何一个室内设计师专业技能(水平)评价认证等级的取得,都必须经过条件审核和考试。考试是全国统一线上考试。室内设计师报考条件:1、初级室内设计师的申报条件:从事设计等相关工作、就读或毕业于室内设计等相关专业。2、报考中级的考生,在满足初级室内设计师申报条件的基础上,须至少满足一项以下条件:在室内设计等相关领域工作满3年;毕业于室内设计等相关专业;获得过室内设计相关的省级及以上比赛奖项;通过室内设计师专业职业人才技能认证初级考试。3、报考高级的考生,在满足中级室内设计师申报条件的基础上,须至少满足一项以下条件:获得室内设计相关专业本科及以上学历;在室内设计等相关领域工作满5年;获得室内设计相关的全国性比赛奖项;出版过室内设计相关书籍或发表过室内设计等相关领域高水平学术论文;独立主持过设计项目或在室内设计等相关领域教育教学成果突出。以上内容参考:百度百科-室内设计师资格证书
2023-06-16 04:55:501

aloevera芦荟胶92%到98%有什么不同

芦荟胶92%到98%的不同:1、浓度不同理论上来说,芦荟胶92%、、98%、99%以及100%这个数字代表的芦荟胶里的芦荟的含量。92%说明它里面芦荟胶的芦荟含量占92%,而98%等浓度就高一些。100%就说明它是纯芦荟胶不添加任何物质的。2、用途不同92%的芦荟浓度比较常见,在保湿、去痘痘方面还是有效果的。一般生活中普通护肤选92%即可,也是最合适的。富含92%的芦荟萃取精华,独特的温和配方,不含防腐剂,无人工色素添加。并已通过CCOF认证,温和滋润全身肌肤,可适用于脸部,手臂,大腿以及头发。而如果您的皮肤比较敏感,就选用纯度高一些的。用来治疗作用一般是浓度高的芦荟胶。如100%的能涂在伤口上消炎,不过一般92%就够了。如果有人是强烈过敏性皮肤的话,建议用98%或99%的比较好一些。3、状态不同98%的芦荟胶比92%的芦荟胶要黏一些,92%的芦荟胶打开后是膏状的,但如果手上的温度高一些的话,就会有一点水嗒嗒的感觉,但98%的粘性就较高一些。4、耐用度不同92%的比较耐用一些,因为92%的比98%的要大,而且92%的比98%的要便宜。
2023-06-16 04:55:551

react h5端 下拉刷新和上拉加载组件

拉刷新和下拉刷新的两种方法(包括使用第三方库MJRefresh)一、使用苹果原生的方法1、下拉刷新2、上拉刷新(1首先要新建一个footer得XIB文件,当然同时包括对应的控制器文件,例如在XIB文件中可以如下拖拉对应的控件(2然后在代码文件中写一个实例方法+(instancetype)footer{return[[[NSBundlemainBundle]loadNibNamed:@"XIB文件名"owner:niloptions:nil]lastObject];}(3然后在我们的列表控制器中调用:/***集成上拉刷新控件*/-(void)refreshUpStateDateList{XBLoadMoreFooter*footer=[XBLoadMoreFooterfooter];footer.hidden=YES;//一开始是要隐藏起来的,当scrollView拖拉到底部的时候我们才把它放出来self.tableView.tableFooterView=footer;//其实就是相当于把这个XIB文件当作是tableView的Footer}(4上拉到底部的时候去调用刷新数据的方法二、使用第三方库MJRefresh1、下拉刷新遵守协议:,然后其实就是把它当成tableview的header来用2、下拉刷新3、需要注意:最后需要dealloc
2023-06-16 04:56:001

听说芦荟里面的黄色黏液是致癌物质

应该不是吧!要不然怎么好多人都往脸上抹呢?
2023-06-16 04:56:032

设计师有哪些证?

    设计师是一个很宽泛的概念,要具体到某一领域才有某一领域相应的职称证书,比如机械行业初级到高级的职称证书有:助理工程师,工程师,高级工程师。  设计师是对设计事物的人的一种泛称。通常是在某个特定的专门领域创造或提供创意的工作,从事艺术与商业结合在一起的人。这些人通常是利用绘画或其他各种以视觉传达的方式来表现他们的工作或作品。  设计分为平面设计、空间设计、工业设计、珠宝设计、游戏设计、家具设计、建筑设计、室内设计、景观设计、服装设计、网页设计、系统设计、剧场设计、动漫设计、品牌设计、造型设计三维设计师、杂志封面设计师、包装设计师、形象设计师等领域。所以具体行业才有具体证书。  资格证书种类:  资格证又有执业资格证和职业资格证之分,比如执业医师资格证。  如教师资格证书是国家对符合教师资格条件的公民依法授予教师资格的法定凭证。在中华人民共和国境内的各级各类学校或者其他教育机构中担任教师工作的人员,必须持有教师资格证书。  各行个业都有自己特有的资格证书,比如:注册会计师执业资格证、律师执业证等。  我国部分职业资格证书会进行等级划分,一般分为五个等级,分别是:初级、中级、高级、技师和高级技师等。
2023-06-16 04:56:073

NSNotification是同步还是异步?和delegate相比有什么区别,效率呢?

1、NSNotification是同步还是异步? 默认情况下,创建的NSNotification是同步的, 发布通知 接收通知 执行结果 通过这里的时间间隔可以看出,在抛出通知以后,观察者在通知事件处理完成以后(这里我们休眠3秒),抛出者才会往下继续执行,也就是说这个过程默认是同步的;当发送通知时,通知中心会一直等待所有的observer都收到并且处理了通知才会返回到poster; 那能不能当成异步处理呢? 两种方法: 第一种方法,发布通知的时候搞在子线程中,当然了,接收方法触发的也是在子线程中 第二种方法,接收方法在子线程中执行 2、NSNotification和delegate相比有什么区别 1>NSNotification是一对多的关系,不需要两个之间建立什么联系,类似于一种广播似的发送消息,接受者只要是声明了接收信息,就能接收。消息接受者通过keyPath的方式指定需要接受的消息类型,通常在对象初始化完成以后声明开始接受消息,在对象被销毁前注销接受消息。 NSNotification发布一个广播的通知。(面向所有的类),当有谁需要这个通知的话,就注册成为它的会员(会员存在Array里)。notification通过管理array来实现事件的操作。 当哪个 会员 什么时候不需要再成为会员的时候,就需要注销(在dealloc里释放) 2>delegate是一对一的关系,首先两个要建立联系,才能进行相应的传值回调动作。 3、效率哪个更高 效率肯定是delegate比NSNotification高。
2023-06-16 04:56:081

ios开发中如何删除子视图

如果你是指文件级的删除 直接delete选择crash即可如果你是指逻辑上的删除 换个说法就是返回主视图 如果你使用Navigation控制器的话,他会在返回的时候通过dealloc方法释放掉。
2023-06-16 04:55:422

关于蔬菜的英语单词

vegetables蔬菜carrot 胡萝卜cabbage卷心菜tomato 西红柿potato 土豆chili 辣椒cucumber黄瓜celery芹菜onion洋葱
2023-06-16 04:55:376

能把文字转为图片分享的ios便签软件

摘自百度经验jingyan./article/.html苹果系统的使用方法我在这里就不介绍了,做苹果开发需要有一定的C语言和OC语言的基础,有时间我会写一些关于C语言和OC语言的经验。下面我就开始介绍我们开发需要用的软件:一、Xcode(软件下载地址:developer.apple/xcode/);二、IOS模拟器。Xcode 5.0 安装下载完成的安装包是DMG文件,打开DMG文件后会发现Xcode安装包,点击后一路NEXT即可;下面我们开始制作第一个自己的程序,首先我们打开Xcode,创建一个新的项目,并给项目起名(这里面我用MRC手动内存管理,你们也可以用自动的内存管理);给想要做IT的男同胞们做个小项目吧,用来哄女朋友开心的小程序,简单介绍几个控件的简单用法。软件的大概内容为:有个输入框,在输入框中输入一个人的名字,通过按钮点击拆礼物,礼盒打开后在框框中显示一行字为:”某某某 I LOVE YOU“输入名字只有,有个按钮上面写着”拆礼物“,点几次,礼物打开是朵玫瑰花。。。先了解一下设备的大小,苹果的设备,有三种分辨率,分别是320*480和320*568,苹果的设备(0,0)点在左上角,这里我们用320*480,设置方法如下我们把这个小程序需要用到得图片先加到我们的项目里面去,选中的地方一定要注意项目已经创建完成了,那么,我们首先要了解这里面需要用到的几个控件文本输入框(UITextField)文本显示框(UILabel)按钮(UIButton)显示图片的控件(UIImageView)文本输入框,顾名思义就是可以输入需要的内容的框,就好像我们发短信的输入框一样;文本显示框,也就是显示我们需要的文字;按钮,就是可以点击的那种按钮,比如:确定按钮等;显示图片的控件,就是一个可以放图片的控件,例如:背景。。。这个小程序中涉及到了控件的创建,控件的一些用法,功能,还有方法的声明等;用图片说明一下先在 ”.h“ 中声明几个属性然后在 ”.m“ 中来添加我们的几个控件,用 MRC 手动内存管理的朋友在这里要注意调用下 dealloc 方法,用来使内存平衡代码中的注意事项我都用注释标注好了"//" 和 "/**/" 是注释的意思,也就是所有的浅绿色的文字都是注释,程序运行的时候注释的代码是不执行的代码就不复制粘贴了,想要学习吗?那就自己学习的打一下吧!下面是效果图,你们要不要试试看呀!大功告成,去哄朋友开心吧!
2023-06-16 04:55:181

关于各种蔬菜的英语解释

Celery 西芹White cabbage 包心菜Sweetcorn 玉米Green pepper 青椒Redpepper 红辣椒Cherry tomato 樱桃番茄Mushroom 蘑菇Cauliflower 花椰菜 菜花Eggplant 茄子Asparagus 芦笋[əˈsparəgəs]Cucumber 黄瓜Broccoli 绿菜花 西兰花 [ˈbrɒkəli]Pepper 甜椒 柿子椒Cabbage 卷心菜 甘蓝Romaine lettuce 长叶莴笋[rə(ʊ)ˈmeɪn] 长叶生菜Leek 韭菜Sweet potato 红薯地瓜Radish 小红萝卜Beet 甜菜根Pumpkin 南瓜Summer squash 西葫芦Winter squash 笋瓜笋瓜;南瓜,倭瓜 K.K.[skwɑʃ, skwɔʃ]Pea 豌豆Snow pea 荷兰豆Bean 豆荚蚕豆Green bean 四季豆String bean 刀豆 豆角Mung bean 绿豆Rape 油菜Laver 紫菜Caraway 香菜Gourd 葫芦Wax gourd 冬瓜Towel gourd 丝瓜Lotus root 莲藕White fungus 银耳Balsam pear 苦瓜 [ˈbɔːlsəm pɛr]Bamboo 竹笋Day lily 黄花菜Fennel 茴香Mango 芒果Starfruit 杨桃Kiwi 奇异果 猕猴桃Lychee 荔枝Fig 无花果Coconut 椰子Red date 红枣Date 枣Chinese date 中国枣 枣 Honey date 蜜枣紫茄子。 亦称 eggplantYam 山药,甘薯Chillies 辣椒Eddoes 小芋头 芋根又称 taro 芋头Spinach 菠菜Beansprots 绿豆芽Springonions 葱Leeks 大葱Garlic 大蒜Ginger 生姜Greenbean 绿豆Redbean 红豆Silknoodles 粉丝Soy sauce 酱油Vinegar 醋Cornstarch 淀粉
2023-06-16 04:55:162

藤本芦荟有哪些分类?

藤本芦荟的分类:1、雷多绵芦荟Aloearenicola。属于中等灌木,由许多爬茎组成,植株生长紧密;叶多坚硬向上翻转生长,叶族生排列整齐,叶蓝绿色,叶两面的白色斑点明显,叶缘上的白刺很小;花序有1~2个分枝,花穗呈伞状,花青红色;花期6~9月。原产地南非,分布南非西部。2、康伯托尼芦荟Aloecomptonii。植株无茎,爬茎长1m多,特别老植株非常明显;叶呈三角形,蓝绿色,叶缘上有短具刺;花序有多个分枝,总状花序,花着生很密集,花鲜红色;花期8月至翌年1月。原产地南非,分布南非南部。3、帝斯坦斯芦荟Aloedistans。有爬缘生长习性,形成许多分散爬缘茎,长达3m,有许多分枝;叶似三角形,蓝绿色,叶两面有白斑,叶缘有黄色刺;花序常有4个分枝,花穗呈伞状,花橙红色到红色;低海拔花期在夏季,高海拔在冬季。原产地南非,分布南非西部。4、玛瑞芦荟Aloemeyeri。像A。dabenorisna一样,该品种倒立生长在悬崖上,茎长1m,在茎基部形成许多丛生株;叶质硬,茎上的干叶能保留一段时间,叶缘有小白刺;总状花序,反转向上,花橙红色带缘点;花期11~12月。原产地南非,分布南非西部。
2023-06-16 04:55:091