香港有多少个航空公司可以直飞加拿大？

teachers 教师; airliners 大型客机; almoners 医院社工; announcers 广播员，播音员; beginners 初学者; chargers 充电器; dispensers 药剂师,配药员; employers 雇用者 扩展资料 　　复数的用法： 　　1.一般情况加s； 　　2. 以s,x, sh, ch结尾加es； 　　3. 以辅音字母+y结尾，变y为i再加es； 　　4.以y结尾的专有名词或元音字母+y结尾的名词变复数时，直接加s； 　　5.以o结尾的名词，有些加词尾-s，有些加-es，有些加-s或-es均可； 　　6.以f，fe结尾，去f，fe变ves。

直升机helicopter无人机UAV(unmanned aerial vehicle)

通过飞机的注册号查看飞机服役的信息是一种可行的方法，你可以访问一些特定的网站来获取这些信息。1. 访问 Flightradar24 网站（www.flightradar24.com），这是一个全球性的航班跟踪网站，可以让你输入飞机的注册号来查看该飞机的实时位置和飞行信息。需要注意的是，这些网站上提供的信息可能并不总是准确的，所以你需要自行判断其可信度。同时，这些网站的使用可能需要你注册并登录，以及支付一定的费用。

国航机队 空中客车A319 33架 空中客车A320 5架 空中客车A321 3架 空中客车A330-200 20架 空中客车A340-300 6架 波音737-300 38架 波音737-700 20架 波音737-800 47架 波音757-200 13架 波音767-200 3架 波音767-300 7架 波音777-200 10架 波音747-400 12架 波音787-8 15架（订购中）

1. 环境的 [in,vaiu0259ru0259n"mentl]2.资源 [ri"su0254:s]3.保存[pri"zu0259:v]4.饥饿 ["hu028cu014bgu0259]5.礼物["preznt]6.有经验的 [iks"piu0259riu0259nst]7.艰难 ["hɑ:du0283ip]8.战争 [wu0254:]9.电 [,ilek"trisiti]10.超音波的 ["sju:pu0259"su0254nik]11.大型客机 ["u025bu0259,lainu0259]12.13.14.模型15.1617.发展中的18.

就是空中客车320-100型飞机,座位160人左右,单走道

www.airliners.net我经常去这个国内有一个飞友也是满不错的，只是最近这段时间好像是服务器有点问题，不能上了

选B.A.convince： 和人联系时的用法一般都是被动，be convinced that 如：Sally is convinced that she is the prettiest girl in the class.B.anticipate： 预期/见，预料到 anticipate (doing) sth. / anticipate that 从句 如：We anticipate that she will vote for the plan.我们预料到她会投赞成票。 C.resolve： 解决：resolve disputes 解决纠纷； 决心做某事：I resolve to contribute more to the society. 决心为社会做出更大贡献D.assure： 确保，保证，使确信 因为本身就有使动意味，故不用被动 如：I can assure you that he is reliable.我向你担保他绝对可靠。本句意思应该是：人们预言直升飞行运输会像客机一样运送上千万乘客…… Hope these will help~^_^~

777-200 同 777-200ER 系机身大细同外型上系完全一样， 的确冇办法从外观上分辨 Basic Dimensions Wing Span Overall Length Tail Height Interior Cabin Width Diameter 777-200 199 ft 11 in (60.9 m) 209 ft 1 in (63.7 m) 60 ft 9 in (18.5 m) 19 ft 3 in (5.86 m) 20 ft 4 in (6.19 m) 777-200ER 199 ft 11 in (60.9 m) 209 ft 1 in (63.7 m) 60 ft 9 in (18.5 m) 19 ft 3 in (5.86 m) 20 ft 4 in (6.19 m) 不过 777-200LR o既 Wing Span 就比 777-200/-200ER 长左几尺， 垂直尾翼亦高左一尺... Basic Dimensions Wing Span Overall Length Tail Height Interior Cabin Width Diameter 777-200LR 212 ft 7 in (64.8 m) 209 ft 1 in (63.7 m) 61 ft 9 in (18.8 m) 19 ft 3 in (5.86 m) 20 ft 4 in (6.19 m) 咁尾翼高果一尺咁大把真系非常难睇得出， 不过 Wing Span 长左果几尺其实系一对 Wingtap， 呢对系同 777-300ER 一样o既 "raked wingtip" 图片参考：aviation-fr.info/guide/images/b777/aile 下面呢张系 777-200ER airliners/open.file/1285000/L/ 呢张系 777-200LR airliners/open.file/1276540/L/ 睇清楚翼尖就可以分辨出 777-200/-200ER 同 777-200LR 参考: Boeing airliners 基本上没有方法 因为大家的分别只是航程不同 油箱增加 只能从注册编号及航空公司上分办出来 用外型绝对分不出来的

a哎呀,你们怎么老是问这问题你又不是间断

没有你说的很多现在只有俄罗斯KA50，KA52武装直升机是同轴反转螺旋浆这套系统能提供更好的飞行性能但技术很复杂维护也很困难在讲究维护简单批量装备部队的今天即使俄罗斯也没有正式装备这两种直升机

民航网站不说了，军用飞机网站强烈推荐空军世界。http://www.airforceworld.com/

虽然这个问题我没有深入的研究过，但是我觉得可能是和每个飞机的型号不一样，还有所使用的发动机或者是燃油机不一样。

　　大多数指一种、一类、一群或一数的几乎全部或大部分。那么你知道大多数用英语怎么说吗?下面来学习一下吧。 　 　大多数英语说法1： 　　most of 　　 大多数英语说法2： 　　great majority 　 　大多数的英语例句： 　　大多数客人都会穿晚礼服。 　　Most of the guests will be wearing black tie. 　　大多数的年轻妇女都有生儿育女的生理需要。 　　Most young women feel a biological need to procreate. 　　他的大多数顾问都弃他而去。 　　He has been deserted by most of his advisers. 　　大多数消费者似乎都不相信经济衰退已经过去。 　　Most consumers seem unconvinced that the recession is over. 　　大多数低脂酸奶每100克约含40卡热量。 　　Most low-fat yogurts are about 40 calories per 100g. 　　这比大多数亚音速飞机的飞行高度高20,000英尺。 　　This is 20,000 feet higher than most subsonic airliners. 　　我想我们大多数人无论如何都不想如此仔细地去读报纸。 　　I think most of us don"t want to read what"s in the newspaper anyway in such detail. 　　大多数人养狗是为了有个伴儿。 　　The majority of people own a dog for companionship. 　　大多数时间他们通常都泡在一起。 　　They usually hung around together most of the time. 　　大多数商品都有售，但是价格极高。 　　Most goods are available, but at a price. 　　大多数人依然支持这份条约。 　　Still, a majority continue to support the treaty. 　　这里的大多数人都很正派。 　　The majority of people around here are decent people. 　　我们食用的大多数食物对鸟类都无害。 　　Most foods that we eat are safe for birds. 　　他们中大多数侨民是爱国主义者。 　　Most emigrants among them are patriots. 　　大多数非洲人是黑人。 　　Most African people are black people. 　　在大多数国家，罂粟被禁止种植。 　　Poppies are not allowed to be planted in most countries. 　　这个班的大多数孩子都十五岁。 　　Most students in this class are fifteen. 　　大多数孩子都喜欢吃糖果，但也有一些例外。 　　Most children like sweets, but there are some exceptions. 　　大多数人痛恨虐待儿童。 　　Most people abhor cruelty to children. 　　大多数实验(原意为“这些实验中的大多数”)已按时完成。 　　Most of the experiments have been finished in time. 　　大多数女性麻烦是她们和大多数男人之间的麻烦。 　　The trouble with most women is their trouble with most men. 　　一般驱动程序应当在大多数情况下且针对大多数数据库方案运行。 　　The generic drivers should work in most cases and for most of the database schema. 　　只要大多数人还乐意保留君主制，废除它的主张就是痴人说梦。 　　As long as most people are happy to have the monarchy, the abolitionist position is an arrogant fantasy. 　　一个已过中年的男子，大多数成员都不记得他干这行有多久了 　　A man of mature years who had been in the job for longer than most of the members could remember 　　大多数有关法国外来移民的文学作品都是从法国人的视角写的。 　　Most literature on the subject of immigrants in France has been written from the perspective of the French themselves. 　　当西欧的大多数国家正从经济衰退中缓慢复苏时，他们并没有预见到法国的通货膨胀率会升高。 　　They had not foreseen the higher inflation in France when most of Western Europe was crawling out of recession.

首先肯定它是747，至于那个说是787的top20，Top Gear 从6年前就有那架飞机，当时哪来的787，而分段两层的甲板座舱，说明这是747，第二层长度明显比400型短，所以这是200，具体型号为747-236，属于分支型号，是应用了B47和B52 的技术，可以看下这个 http://www.airliners.net/photo/1070481/

但是，在美国航天局航天中心的科学家已经开发建成发射的客机，军用飞机和航天飞机的挡风玻璃，所有在其最高速度行驶死鸡一支枪。鸟类经常会发生意外时，他们攻击机。迄今为止还没有任何可靠的方法，避免鸟类被发现。但是，在美国航天局航天中心的科学家已经开发建成发射的客机，军用飞机和航天飞机的挡风玻璃，所有在其最高速度行驶死鸡一支枪。这样做是为了重现鸟发生碰撞的事件频频发生，以测试挡风玻璃的力量。火车与鸟类有时会遇到类似的问题。这并不令人感到意外，当英国工程师对枪听说，他们急于测试其新的高速列车的挡风玻璃它。作了安排借用枪。这是飞越大西洋和伦敦附近设置非常谨慎了。但是，当枪被解雇，工程师站在惊讶，鸡飞进了盾牌，砸碎它，通过工程师的椅子去，并在车后降落。惊恐，英国派出美国宇航局的灾难性实验的结果，随着新的挡风玻璃的设计。他们乞求美国科学家把他们避免挡风玻璃粉碎他们的建议。美国航天局审查了彻底测试，并且一个建议：“解冻的鸡”这位网友，这是Google翻译的，不能确定它百分之百地正确～～

国内一般上民航社区的民航贴图http://bbs.feeyo.com/index1.htm或民航图库http://pic.feeyo.com/

Most Potent Geomagnetic Storm Hits Earth 强烈的太阳磁暴袭击地球 　　DENVER - The most powerful geomagnetic storm possible walloped the Earth early Wednesday, knocking out some airline communications but apparently causing no large power outages or other major problems. 　　丹佛 － 烈的太阳磁暴于本周三开始袭击地球，并对某些航空通讯联系产生了干扰，但没有出现大规模电力供应中断或其他重大问题。 　　geomagnetic，地磁的。geomagnetic storm也叫 magnetic storm，.磁暴（因太阳黑子活动而引起的地球磁场的大扰动）。 　　Wallop，To beat soundly; thrash.很响地打；连续拍打。也可作名词讲has a punch that delivers a wallop.具有一个能够有力的猛击的冲头。 　　knock out是个常用词组，意思很多。常用来在体育运动中指To defeat （a boxing opponent） by a knockout.拳击比赛中的对手；或者指To render useless or inoperative，使无用，使失去效能：The storm knocked out the telephones.风暴使电话中断。本文中用的就是这个意思。在非正式用语中，意思是To exert or exhaust （oneself or another） to the utmost: 尽心尽力。knocked herself out to be ready on time.为了及时作好准备她竭尽全力。 　　The storm, the most disruptive to hit Earth since 1989, was unleashed by the fourth-most powerful solar flare ever seen, NASA said. The gigantic cloud of highly charged particles hurled from the sun posed a threat to high frequency radio communications, satellite navigation systems and television broadcasts. Continued turbulence on the sun remains a concern for the next week, space forecasters say. 　　美国国家航空航天局说，这次太阳磁暴是由迄今所见烈四个太阳耀斑释放，对地球的袭击也是自1989年以来有破坏性的一次。太阳高速喷出的巨大粒子云团对于高频无线电波通讯、人造卫星航空系统和电视广播传输都造成了威胁。航空预报员说，太磁暴的旋涡流将一直持续到下周。 　　solar flare，A sudden eruption of hydrogen gas on the surface of the sun, usually associated with sunspots and accompanied by a burst of ultraviolet radiation that is often followed by a magnetic disturbance. 太阳耀斑，太阳表面氢气的突然爆发，经常和太阳黑子有关并伴有紫外线辐射的爆发，从而导致磁干扰。 　　Hurl，To move with great speed, force, or violence; hurtle. 快速移动快速、用力或猛地运动；猛冲。He hurled the brick through the window. 他用力把砖头从窗户投进去。 　　turbulence 指的是An eddying motion of the atmosphere that interrupts the flow of wind. 湍流打断风的运动的极不规则的大气运动。 　　The biggest immediate effect was the blackout of high-frequency voice-radio communications for planes flying far northern routes. But airliners in an emergency could still communicate through VHF contact with another aircraft or military monitoring station, said Louis Garneau, a spokesman for the company that handles Canada"s civil aviation navigation service. 　　太阳磁暴最严重的直接影响是北部航线飞机的高频声波通讯系统会发生中断。负责处理加拿大民用航空航海事务公司的发言人路易斯加纳表示，即使发生紧急情况，航班仍然可以通过特高频与其他飞机或军事检测电台联系。 　　blackout 在本文中指的是Lack of illumination caused by an electrical power failure. 照明不足由电力缺乏引起的照明不足。常用于指（暂时）失去知觉，He had had a blackout after the accident.事故发生后,他晕过去一阵子。in an emergency，在紧急的时。 　　VHF是Very High Frequency的首字母缩写， 甚高频（30VHF 300兆赫）。

一般民航机的飞行高度约为10 000公尺。 相信大家也十分欣赏在飞行时望向窗外的云海景象。通常一般的云层对飞行中的飞机影晌不大，因为在一般民航机飞行高度(通常在二、三万呎)的云层巳经十分稀薄。不过当有雷暴云团产生时，云层便发展得很高，而和雷暴相关连的坏天气，例如，闪电、雷击、积冰和冰雹等现象都对飞行有一定的危险。不过，现今的飞机设备先进，飞行人员又可以透过气象预报去了解坏天气出现的地方，从而作出准备。如有必要，飞机可以改变航道，以避开最恶劣的天气情况。所以，雷暴为航机带来的危险是可以避免的。 o/education/newsarticle/000531 飞行器在美国堪萨斯州萨莱纳机场起飞，当爬升至15240公尺高度（一般民航机高度为10668公尺），挤身在细小驾驶舱的福塞便可顺随喷射气流滑行，有如搭便车般轻松又省油。 singpao/20050222/international/678061 2007-03-23 18:27:35 补充： 英国帝国理工学院的科学家罗伯特。诺兰等人经过研究，提出了一个解决方案-- 降低民航机飞行高度。他们认为，视天气情况而定，当飞机的飞行高度从33000 英尺降低到24000-31000英尺之间时，将不会产生凝结尾迹。t7online/feature/news231002 2007-03-23 18:33:12 补充： 参考以下网址的附图：飞机飞行的高度就在「对流层」顶。ihouseedcity/~hm1203/atmosphere/air No cruising at 40 000ft isn"t rare at all. In fact the majority of modern jet airliners is certified to fly above 40 000ft and it"s particularly mon on long-haul operations where flying at higher altitude will achieve better fuel consumption and engine performance. For example from Sydney to Hong Kong Cathay"s A333s typically operate at the range of 35 000 to 41 000ft. With the initial altitude at 33-35 000ft they gradually climb to 39-41 000ft at mid-way depending on the direction. Then all the way to the top of descend point. But most jet operations are constrainted below 45 000ft due to the extra-terrestrial ionising radiation issue. The only regular public trport operations of jet airliners at the altitude above 45 000ft in history were operated by Concorde due to the need of leaned air density and more stabled air to achieve supersonic performance. For the highest flight altitude achieved by manned aircraft it"s depended on how you define an aircraft. For manned vehicle laterally all spacecraft including space shuttle fly above 380km. But since their flight dynamic is achieved by the use of external booster (in the other words rockets) at the initial flight stage (that me the launch) and being held on the orbit (i.e. level flight) by the inertial force (so no thrust) which maintains the vehicles at the Escape Speed (in plain words the speed to get away from a pla) it doesn"t count as an aero-dynamic vehicle (in our words airplane). The recorded manned airplane operation with the highest altitude achieved is the SpaceShip One flight on 21st June 2004 at the altitude of approximately 100km. 航程超过2小时的 民航机的飞行高度一般是11000公尺 航程在2小时以内的 大多是7500~ 10000公尺之间. 飞机发行的是大气层的最低层 称为对流层 高度约为14公里. 10000公尺等于10公里.

海航把所有员工划分为M序列和B序列，M序列为管理人员。

737:前2后2747:前2后16757:前2后8767:前2后8777:前2后12图片到www.airliners.net查.全有

刚起飞

「站在巨人的肩膊上」: 我想说你的理论完全是错的. 第一: 世界上只有极少的单引擎喷射飞机. 所有一型民航飞机都是双引擎的 这是基于安全考量. 第二: 飞机在地面不是靠机尾的方向舵来转向 而是靠机鼻轮来转向的(除非是Tail Dragger的尾轮. 这是因为飞机在地面滑行时的速度 根本不足以产生足够的空气动力来让方向舵变得有效. 第三: 正常的情况下飞机根本不会利用引擎的输出来控制转弯 因为根本效率不高 喷射引擎的反应极慢 根本没有可能提供地面时滑行需要的灵活性. 第四: 喷射引擎其实是结构最简单的动力装置. 要将向后喷出的热气体转为向前 只需要一个改变喷射方向的装置 就如你家的冷气机一样. 引擎的逆喷装置 其实只是一组活动挡板 改变挡板的角度 就可以将本来向后的热气改为向前. 第五: 的确不是每一种飞机都有飞机梯 但事实上有些民航飞机的确是有随机的飞机梯 如B737和A320 就有接合梯收在机门底. 这是给廉价航空公司的一个option. 大一些的飞机的确可以倒后行 只是在极大多数的情况下都不会 这有几个原因: 1. 逆喷的气流因为会改变方向 较难预测 故可能会对地面人员和设备造成伤害. 2. 飞机的引擎一般都在翼下 较接近地面 使用逆喷装置的话 有可能吸入地面的杂物 造成破坏. 故一般只有高置的引擎会使用逆喷装置 如DC-9 B727.因为引擎在机尾较高处. 3. 在很多停机坪都禁止使用引擎 就更不可能使用逆喷装置来倒车. 4. 使用引擎会比拖车用更多燃料 而且损耗引擎 故尽可能都用拖车. 但滑行至跑道还是会用引擎动力 因为引擎是要一定时间暖车. 你个答案都唔多贴题wor * Planes can go backwards. I have seen a RAAF/USAF C-17 do a very short landing on a runway engaging full reverse thrust - after the plane stopped the captain continued to use the reverse thrust and the plane started to move backwards. on the runway (It was in a military airshow in Sydney last year). * Wheels on planes are typically not powered therefore they cannot make the plane move forward or backward. * On the ground plane uses their engines to generate thrust. Since the engines are designed to make the plane go forwards they provide much better thrust forwards than they can backwards. * A lot of civil airliners (ie. big jets) have reverse thrust - they are used main after landing to slow down the plane especially on short runways. * In order to make the plane go backwards the plane must use reverse thrust. However that greatly reduces the air that goes into the engine making it inefficient and can potentially overheat the engine. * In addition the pilot cannot see behind the plane well making it potentially dangerous to make a plane go backwards using reverse thrust. 都比captain wu同olga说明了 咁清楚都唔洗补充... 再简单啲讲 机轮设计上只能滑行 不能产生前后动力的. 好简单！飞机的D设计系唔会有多余的东西带上天空，可以减ge o野都会减晒，至于点解，系因为多带一样o野上天空，会重多一D，飞机燃油用多D，乘客反而小o左，咁你话飞机会唔会放张上落机用ge梯系度丫？同一道理佢又点解会安装倒后装置系机上呢？就算系飞机落到地面，想向前或是转方向，它都只是用飞机引擎造动力罢了！ 图片参考：.yimg/i/icon/16/2 2007-01-22 00:04:39 补充： 楼主你问得好，答案就系滑行，当一架单引擎ge喷射客机，在地面前进是用引擎减少推力向前推的，如果想转方向的话，就用尾翼的方向舵改变方向。双引擎的话，前进是一样的，但改变方向时，就主要是改变左右引擎的推力来达成的，如向左转，再减少左手便的引擎推力，咁架机就会向左转弯了，也是最多航机所使用的方法，因为国际规定飞航国际航线的飞机一定要有两个或以上的引擎的。 2007-01-22 00:20:01 补充： 飞机的喷射引擎系很难开倒车的，因为引擎的前方是设计成吸入及初步压缩冷空气的，而尾部是喷射高压的热气体，而且不用我说你都知道它的构造是相当复杂的，唔会设计多余的构造来达成开倒车的用途的。 参考: 自已 飞机系设计0黎向前飞，而飞机 even 0系地上 taxi 都系用 engine 0既 thrust，并冇动力系经 gear 传到地上。 但技术上，部份喷射机系可以用 reverse thrust 倒后行。 不过系实际上唔会咁做，一0黎浪费能源，二0黎会对 ground 其他人有危险。 参考: 自己 因为本身无向后嘅动力

The hijackers intentionally crashed two of the airliners into the Twin Towers of the World Trade Center in New York City, killing everyone on board and many others working in the buildings. Both buildings collapsed within two hours, destroying nearby buildings and damaging others. The hijackers crashed a third airliner into the Pentagon in Arlington, Virginia, just outside of Washington, D.C. The fourth plane crashed into a field near Shanksville in rural Pennsylvania, after some of its passengers and flight crew attempted to retake control of the plane, which the hijackers had redirected toward Washington, D.C. There were no survivors from any of the flights.不止六句，参考资料中国屏蔽了所以我给不了链接给你

wreckage，英语单词，主要用作名词，作名词时译为“（失事船或飞机等的）残骸；（船只等的）失事”。短语搭配：1、Bog Wreckage腐沼残迹2、aircraft wreckage飞机残骸3、Underwater wreckage水下残骸4、floating wreckage漂浮残骸 ；漂浮着的残骸；浮动失事船残骸破片5、ship wreckage船舶残骸6、impact wreckage碰撞破坏7、plane wreckage飞机残骸8、no wreckage未找到残骸双语例句如下：1、We will now try to reassemble pieces of the wreckage.我们现在会尽量把残骸重新组合起来。2、For three weeks a big operation went on to recover the wreckage from the sea bed.一项大规模行动持续3周以从海床寻找残骸。3、Workers are sifting through the wreckage of the airliners amid growing evidence that the disasters were the work of terrorists.在越来越多证据证明这些灾难是恐怖分子所为的同时，工人们正在仔细检查那些客机的残骸。

写作思路：围绕文章的中心思想，结合自身感受得描述，正文：On September 11, 2001, four passenger planes flying above in the United States, however, the four planes by the robbers are silent robbed. When Americans just ready to start a day"s work, New York"s world trade center, continuously happen, crash of the world trade center collapsed, skyscrapers(摩天大楼), crashing into ruins, causing more than 3000 people were killed.2001年9月11日,恐怖分子抢劫架飞机撞击美国纽约世贸中心和华盛顿五角大楼的历史。2001年9月11日，四个客运飞机上面在美国，然而，四架飞机被强盗抢劫是沉默。当美国人刚刚准备开始一天的工作，纽约的世界贸易中心，不断发生，崩溃的世界贸易中心倒塌，摩天大楼，撞入废墟，造成超过3000人死亡。The whole the United States have shocked the world, people who stuck into extreme panic has caught the world"s shocked, this is in the history of the United States of the most serious disasters.整个美国震惊了世界，人们陷入了极度的"恐慌已经引起了全世界的震惊，这是美国历史上最严重的灾难。A plane from Boston to New York at the American Airlines Boeing 767 (11) Flight number flight being held and crashed into the world trade center in New York Manhattan (曼哈顿)south building, the plane "torn" the building, is apart from the ground in about 20 layer a smoke, and cause an explosion.一架飞机从波士顿到纽约的美国航空公司波音767(11)航班号飞行被关押，撞向世界贸易中心在纽约曼哈顿南方建筑，飞机“撕裂”，距地面约20层烟,并引发一场爆炸。And a small plane with great speed to the north of the world trade center building. The plane crashed into the side of the building, through the other side, and cause huge explosion. Two bombs may cause the thousands of. injuries and deaths.和一架小型飞机以极大的速度向北的世界贸易中心大楼。飞机撞上大楼的一侧，另一侧，并导致巨大的爆炸。两枚炸弹可能导致成千上万的。受伤和死亡。

问题一："直升机"用英语怎么说 helicopter 英 [?hel?k?pt?(r)] 美 [?hel?k:pt?(r)] n.直升机，直升飞机 vt.用直升飞机载送 vi.乘直升飞机 例句： The helicopter was returning from a reconnaissance mission 直升机完成侦察任务后正在返航。 问题二：各种类型的飞机用英语怎么说？比如说直升机，无人机等等 helicopter- 直升机 Cargo Aircraft-载货飞机 Jets－喷气式飞机 Turboprops－涡轮机螺旋桨式飞机 Airliners－客机 bomber-轰炸机 jet fighter－喷气式战斗机 fighter plane-战斗机 torpedoplane -鱼雷机 spy plane-侦察机 attack plane -强击机 unmanned aerial vehicle -无人机 early warning airplane-预警机 anti submarine warfare air plane-反潜机 interceptor -截击机 问题三：直升机的英语怎么说 飞机 aircraft; plane; airplane; aeroplane [例句] 一架轻型飞机昨天在一个高尔夫球场的球洞区紧急降落了。 A light aircraft crash-landed on a putting green yesterday. 问题四：""直升机""用英语怎么说? copter n. 直升机 helicopter n. 直升(飞)机, 直升机 词性变化供 helicopter vt. 用直升飞机载送 helicopter *** . out of the sea 用直升飞机救某人出海(指海上遇难人员) helicopter the President to London 用直升飞机送总统去伦敦 helicopter vi. 乘直升飞机 The president helicoptered to California yesterday. 总统昨天乘直升飞机赴加州。 特殊用法 dual-rotor helicopter 双旋翼式直升飞机 flying-crane helicopter 起重直升飞机 intermeshing rotors helicopter 交叉旋翼式直升飞机 pulsejet helicopter 脉动喷气式直升飞机 问题五：遥控直升机用英语怎么说 remote controlled helicopter 问题六：我们还乘坐了直升飞机英语怎么说，谢谢 we have taken the helicopter.

问题一："直升机"用英语怎么说 helicopter 英 [?hel?k?pt?(r)] 美 [?hel?k:pt?(r)] n.直升机，直升飞机 vt.用直升飞机载送 vi.乘直升飞机 例句： The helicopter was returning from a reconnaissance mission 直升机完成侦察任务后正在返航。 问题二：各种类型的飞机用英语怎么说？比如说直升机，无人机等等 helicopter- 直升机 Cargo Aircraft-载货飞机 Jets－喷气式飞机 Turboprops－涡轮机螺旋桨式飞机 Airliners－客机 bomber-轰炸机 jet fighter－喷气式战斗机 fighter plane-战斗机 torpedoplane -鱼雷机 spy plane-侦察机 attack plane -强击机 unmanned aerial vehicle -无人机 early warning airplane-预警机 anti submarine warfare air plane-反潜机 interceptor -截击机 问题三：直升机的英语怎么说 飞机 aircraft; plane; airplane; aeroplane [例句] 一架轻型飞机昨天在一个高尔夫球场的球洞区紧急降落了。 A light aircraft crash-landed on a putting green yesterday. 问题四：""直升机""用英语怎么说? copter n. 直升机 helicopter n. 直升(飞)机, 直升机 词性变化供 helicopter vt. 用直升飞机载送 helicopter *** . out of the sea 用直升飞机救某人出海(指海上遇难人员) helicopter the President to London 用直升飞机送总统去伦敦 helicopter vi. 乘直升飞机 The president helicoptered to California yesterday. 总统昨天乘直升飞机赴加州。 特殊用法 dual-rotor helicopter 双旋翼式直升飞机 flying-crane helicopter 起重直升飞机 intermeshing rotors helicopter 交叉旋翼式直升飞机 pulsejet helicopter 脉动喷气式直升飞机 问题五：请问一下大家直升机用英语怎么说 helicopter 问题六：遥控直升机用英语怎么说 remote controlled helicopter 问题七：直升机的英文有helicopter和chopper，两者有什么不同？分别用在哪些方面？ 两个词都有：用直升机运送和乘直升机飞行，这两个意思。helicopter还有个名词意思：直升机，在英语的使用习惯中，正式说直升机这个词一般是使用helicopter。chopper也有个名词意思：斩波器、斧子、斧头、切碎机，也有“直升机（有切碎机这个意思就明白为什么直升机了）”的意思，不过一般是用作口语，在正式的说法中是使用helicopter。 问题八：我们还乘坐了直升飞机英语怎么说，谢谢 we have taken the helicopter.

www.airliners.net我经常去这个国内有一个飞友也是满不错的，只是最近这段时间好像是服务器有点问题，不能上了

更新1: 我需要大量资料做报告 所以得的话 比多d网址我都得. Actually the plane applied the Bernoulli"s Principle The following is the detail... Wings We shall start by looking at a wing cross-section designed as it was meant to be used - to produce lift on an aeroplane. As the wing moves through the air it splits the air into o streams. One stream travels over the wing and one travels under the wing. Because of the way the wing is shaped the distance across the top of the wind is greater than the distance across the bottom of the wing. This causes the air flowing over the wing to move faster than the air flowing under it. As we have seen above Bernoulli"s equation states that a faster moving fluid has a lower pressure than a slower moving one. This me that the faster moving air above the wing has a lower pressure than the air flowing under it. This pressure difference causes the wing to move towards the area of low pressure i.e. in an upwards direction. This phenomenon is known as lift and this is what keeps planes from falling from the sky. The lift on a wing is proportional to its" area - the larger the area the more lift is produced. An inverted wing is used on racing cars. An inverted wing is basically a standard wing fitted upside-down. This me that the lift that is produced is in the opposite direction to a standard wing - this type of lift is known as ‘negative lift" otherwise known as downforce. This downforce forces the car onto the road which in turn forces the tyres down onto the road with a lot more force than the weight of the car alone. The grip that tyres can produce increases roughly in a linear manner with increasing load (downforce in this case). Therefore with the increase in downforce the load on the tyres increases meaning that the grip the tyres have is increased proportionately. This allows the drivers to go faster around corners than in a car without the downforce and produces significant time savings. Usually o wings are used - one at the rear and one at the front. This is done to balance the forces so that the grip is roughly equal at both ends of the car otherwise the handling of the car would be terrible especially at higher speeds when maximum downforce is achieved. 参考: forumula1/2006/f1/features/car-design-technology/aerodynamics Fixed-wing aircraft include a large range of craft from *** all training and recreational aircraft to large airliners and military cargo aircraft. Some aircraft use fixed wings to provide lift only part of the time and may or may not be referred to as fixed-wing. The term also embraces aircraft with folding wings that are intended to fold when on the ground. This is usually to ease storage or facilitate trport on for example a vehicle trailer or the powered lift connecting the hangar deck of an aircraft carrier to its flight deck. It also embraces "variable geometry" aircraft such as the General Dynamics F-111 Grumman F-14 Tomcat and the Panavia Tornado which can vary the sweep angle of their wings during flight. There are also rare examples of aircraft which can vary the angle of incidence of their wings in flight such the F-8 Crusader which are also considered to be "fixed-wing". An F-16 Fighting Falcon a military fixed-wing aircraft Two necessities for all fixed-wing aircraft (as well as rotary-wing aircraft) are air flow over the wings for lifting of the aircraft and an open area for landing. The majority of aircraft however also need an airport with the infrastructure to receive maintenance restocking refueling and for the loading and unloading of crew cargo and/or passengers. While the vast majority of aircraft land and take off on land some are capable of take off and landing on ice snow and calm water. The aircraft is the second fastest method of trport after the rocket. Commercial jet aircraft can reach up to 900 km/h. Single-engined aircraft are capable of reaching 175 km/h or more at cruise speed. Supersonic aircraft (military research and a few private aircraft) can reach speeds faster than sound. The speed record for a plane powered by an air-breathing engine is currently held by the experimental NASA X-43 which reached nearly ten times the speed of sound. The biggest aircraft currently in service is Antonov An-225 while the fastest currently in production is the Mikoyan MiG-31. The biggest supersonic jet ever produced and currently in service is Tupolev-160. Aircraft parts A typical fixed-wing aircraft can be divided into the following major parts: · A long cylinder called a fuselage with tapered ends to make its shape aerodynamically *** ooth. The fuselage carries the human flight crew the passengers if the aircraft is a passenger aircraft and/or the cargo if the aircraft carries cargo. The pilots who are members of the flight crew operate the aircraft from a cockpit located at the front of the fuselage and equipped with windows controls and instruments. · ... Aircraft controls A number of fairly standardized controls allow pilots to direct aircraft in the air. The controls found in a typical fixed-wing aircraft are as follows: · ... History Main articles: Aviation history and First flying machine The dream of flight goes back to the days of pre-history. Many stories from antiquity involve flight such as the Greek legend of Icarus and Daedalus. Leonardo da Vinci drew an aircraft in the 15th century. With the first flight made by man (Francois Pilatre de Rozier and Francois d"Arlandes) in an aircraft lighter than air a balloon the biggest challenge became to create other craft capable of controlled flight. 参考: *** When powered flights of the X-34 begin later this year the experimental vehicle will be carried aloft by the L-1011 then released for rocket-powered flight and a standard horizontal landing. Eventually the X-34 will perform high-speed suborbital free flights to demonstrate technologies such as advanced thermal protection system posite structural ponents and autonomous landing.

发过去了737 777 310 340 380

关于美国总统的权利不知道你要知道哪方面的内容，有很多参考文献可供参考： http://www.ilib.cn/A-lndxxb-zxshkxb200304014.html

Superstar - Lupe Fiasco (feat. Matthew Santos)[crowd cheering][Chorus – Matthew Santos]If you are what you say you are, a superstarThen have no fear, the camera"s is hereAnd the microphone"sAnd they wanna" know oh oh oh oh (The Return)If you are what you say you are, a superstarThen have no fear, the crowd is hereAnd the lights are onAnd they wanna show oh oh oh oh, yeah[Verse 1 – Lupe Fiasco]Yeah, uhA fresh cool young Lu"Tryna" catch his microphone check 2, 1, 2Wanna" believe my own hype but it"s too untrueThe world brought me to my knees, what have you brung you?Did you improve on the design? Did you do somethin" new?Well ya" name ain"t on the guest list, who brung you?YOU! The more famous person you come throughAnd the sexy lady next to you, you come tooAnd then it hit meStandin" outside of heaven waitin" for god to come and get meI"m too uncouthUnschooled to the rules and too gum shoeToo much of a new comer and too un-coolLike Shadow and Lavelle, I battle wit" it wellTho I need holiday like lady who sung "Blue"Go back, whatever you did you undoHeavy as heavenThe devil on me, two ton"s too[Chorus – Matthew Santos]If you are what you say you are, a superstarThen have no fear, the camera"s is hereAnd the microphone"sAnd they wanna" know oh oh oh oh, yeah[Verse 2 – Lupe Fiasco]And ya" better wear ya" shaaadesThe spotlights here can burn holes through the staaageDown to the basement pass the Indian gravesWhere the dinosaurs laidThen out through shinin", nearly miss the airlinersMagnified times five, "less its pointed at the ryhmerRicochets off the moon and sets the forest ablaaazeNow that"s important to say"Cause even with all that most of us don"t want it to faaadeWe want it to braid, meaning we want it to growMeaning we want it to staaayLike the Governor called and he told him to waaaitUn-strap him from the chair and put him back in his caaageThe audience ain"t faaazedAnd they ain"t gon" clap and they ain"t gon" praiseThey want everything back that they"ve paid"Cause they"ve been waitin" since ten to see the lights get dim[Chorus – Matthew Santos]If you are what you say you are, a superstarThen have no fear, the crowd is hereAnd the lights are onAnd they wanna show oh oh oh oh, yeah[Verse 3 – Lupe Fiasco]So chauffeur chauffeur come and take me away"Cause I"ve been standin" in this line for like five whole daysMe and security ain"t getting" alongAnd when I got to the front, they told me all of the tickets were goneSo just take me home where the mood is mellowAnd the roses are grown, M&Ms are yellowAnd the light bulbs around my mirror don"t flickerEverybody gets a nice autograph pictureOne for you and one for your sisterWho had to work tonight but is an avid listenerEvery songs her favorite song and mics don"t feedbackAll the reviewers say "You need to go and see that"And everybody claps "cause everybody is pleasedAnd then they all take the stage and start performin" for meLike, ha ha ha ha haHa ha ha ha ha, ha[Chorus – Matthew Santos]If you are what you say you are, a superstarThen have no fear, the camera"s is hereAnd the microphone"sAnd they wanna" know oh oh oh ohIf you are what you say you are, a superstarThen have no fear, the crowd is hereAnd the lights are onAnd they wanna show oh oh oh oh, yeahIf you are, what you say you areThen have no fear

1,（船）搁浅，触礁；使搁浅或触礁2.使停飞；使降落The airliners were grounded in Japan because of the coming of the typhoon.3.作为根据；作为基础

near miss 英 [niu0259 mis] 美 [nu026ar mu026as] n. 侥幸脱险，差点出事，几乎发生的事; [例句]Details have been given of a near miss between two airliners over southern England earlier this week本周早些时候两架客机在英格兰南部险些相撞，有关细节现已公布。[其他] 复数：near misses

这个是Lupe Fiasco 演唱的Superstar下面是歌词[crowd cheering] [Chorus (Matthew Santos):] If you are what you say you are, a superstar Then have no fear, the camera is here And the microphones And they wanna know oh oh oh oh (the return) If you are what you say you are, a superstar Then have no fear, the crowd is here And the lights are on And they wanna show oh oh oh oh, yeah [Verse 1 – Lupe Fiasco] Yeah, uh A fresh cool young Lu" Tryna catch his microphone check 2, 1, 2 Wanna believe my own hype but it"s too untrue The world brought me to my knees, what have you bring you? Did you improve on the design? Did you do somethin" new? Well your name ain"t on the guest list, who bring you? You! The more famous person you come through And the sexy lady next to you, you come too And then it hit me Standin" outside of heaven waitin" for god to come and get me I"m too uncouth Unschooled to the rules and too gum shoe Too much of a new comer and too un-cool Like Shadow and Lavelle, I battle with it well Tho I need holiday like lady who sung "Blue" Go back, whatever you did you undo Heavy as heaven The devil on me, two ton"s too [Chorus (Matthew Santos):] If you are what you say you are, a superstar Then have no fear, the camera is here And the microphones And they wanna" know oh oh oh oh, yeah [Verse 2 – Lupe Fiasco] And you better wear your shades The spotlights here can burn holes through the stage Down to the basement pass the Indian graves Where the dinosaurs laid Then out through China, nearly miss the airliners Magnified times five, "less it"s pointed at the rhymer Ricochets off the moon and sets the forest ablaze Now that"s important to say "cause even with all that most of us don"t want it to fade We want it to braid, meaning we want it to grow Meaning we want it to stay Like the Governor called and he told him to Wait Un-strap him from the chair and put him back in his Cage The audience ain"t fazed And they ain"t gonna clap and they ain"t gonna praise They want everything back that they"ve paid "cause they"ve been waitin" since ten to see the lights get dim [Chorus (Matthew Santos)] [Verse 3 – Lupe Fiasco] So chauffeur chauffeur come and take me away "cause I"ve been standin" in this line for like five whole days Me and security ain"t getting" along And when I got to the front, they told me all of the tickets were gone So just take me home where the mood is mellow And the roses are grown, M&M"s are yellow And the light bulbs around my mirror don"t flicker Everybody gets a nice autograph picture One for you and one for your sister Who had to work tonight but is an avid listener Every songs her favorite song and mics don"t feedback All the reviewers say "You need to go and see that" And everybody claps "cause everybody is pleased And then they all take the stage and start performin" for me Like, ha ha ha ha ha Ha ha ha ha ha, ha [Chorus (Matthew Santos):] If you are what you say you are, a superstar Then have no fear, the camera"s is here And the microphone"s And they wanna know oh oh oh oh If you are what you say you are, a superstar Then have no fear, the crowd is here And the lights are on And they wanna show oh oh oh oh, yeah If you are, what you say you are Then have no fear

adding to放在句首是什么意思：added to 主要用于 added to this / that，属惯用语，通常用于句首，意思是“而且”“此外”。如： Added to this, he is an untiring artist. 而且，他是一个不知疲倦的艺术家。 We were short of money. Added to that, we were lost! 我们钱不够。而且我们还迷路了！ Added to this, the birth rate is not so great as it was. 而且，目前的生育率也不像过去那么高。 Added to that , the child may have feelings of insecurity, jealousy and possessiveness. 除此之外，孩子还可能会有不安全感、嫉妒心和占有欲。 More than 750 commercial airliners were involved in fatal accidents last year. Added to that were the 1,550 smaller aircraft. 去年750多家商业航空公司遭遇过人员死亡的事故。另外还有1,550架小型飞机也出过同样的事故。

1 movement in the United States beginning in the 1960s and led primarily by Blacks in an effort to establish the civil rights of individual Black citizens2 national flag of the United Kingdom3 the period of European history at the close of the Middle Ages and the rise of the modern world; a cultural rebirth from the 14th through the middle of the 17th centuries4 the day in 2001 when Arab suicide bombers hijacked United States airliners and used them as bombs5 a United States program of economic aid for the reconstruction of Europe (1948-1952); named after George Marshall

Aviation industry"s most prestigious Teal, forecast the future 10 years, the global demand for executive will amount to 9000, the total value of about $94.4 billion, and China is one of the most potential markets, in the next 10 years executive is expected to reach 600-1200. If the aircraft flying at full capacity, annual turnover is expected to reach 60 billion yuan. Now China executive market 80% of customers is the large multinational companies, domestic customers only accounted for 20%. But with China"s wto accession, economy, and enterprise in the fierce competition, more and more companies want to race against time, to the time to yield, so the domestic enterprises will soon become the protagonist of executive market. The executive incalculable market potential in China. In the face of China"s huge business executive market, foreign airlines and aircraft manufacturers are keen to get in. 75 - year - old former seasons "American Raytheon", "Canada"s bombardier group", "the French dassault company" have to enter, to grab the opportunity. Business aviation is in accordance with the special requirements of a passenger or institutions, through a specially designed course, within the prescribed period of time, provide charter flight service to passengers. Many large companies use of corporate jets transport personnel and emergency items around the distribution in the company or the customer site. The world population is about 380000 aircraft in civilian aircraft flying, but the flight is less than 10%, more than 90% are executive and industry, agriculture, entertainment and sports by plane. Executive more developed countries, such as the United States has a variety of aircraft, 205000, executive annual flight hours already more than year of flight hours of flight. There are 1.5 enterprises with their own planes in public transportation. In the United States, is suitable for executive landing airport more: flight applicable airport less than 600, but to adapt to the airport for more than 5000 of medium-sized aircraft, suitable for small airport about 19000 flight. Business aviation companies or private operation of the executive is not limited by time of flight, not be restricted by destination, thus has good flexibility. Business aviation is a very safe and effective way to travel, using the business aviation can not only save time, can also ensure the trade secrets, reflect the positive image of an enterprise. By simply by the charter contract and proof of identity is boarding, don"t have to spend a few hours to check-in, customs clearance and waiting, without the rules of civil aviation transportation, you can according to the requirements of business activities to go, there is no limit to the flight schedules, if there is a temporary change, you can directly notified by telephone sets. Due to the official business and the performance is advanced, the airport requirements is not high, so widely applicable, can fly to many ordinary flights without shipment and can"t arrive at the airport, allows you to maximize use good money, time and human resources. Travel safety. No matter from the plane itself performance, maintenance level, or a record of the flight safety, executive is the most safe means of transportation in the world. Such as hawker beechcraft series executive from the world"s largest public/private aircraft manufacturer Raytheon, is by far the most widely used medium fighter jets. It has a better performance, greater ShangZai and farther distance. Executive of cabin design fully consider the business needs, not only has perfect service facilities, more excellent office environment. Passengers on the trip to discuss official business, effective utilization of air flight time in office. Executive shuttle important customers will impress customers!

栽培者在一个最小规模上生产药草和蔬菜, 通常移植一或较多的每次在种植的排蹒跚过了许多月, 和很少超过一或二个公顷每一农民。 美国合伙人在美国借了钱而且前进了它到那合作的以每月的方式。合作人然后前进被购买输入的栽培者大部分而且可能甚至运行或者支付土地准备费用。 栽培者负责劳动和水花费。 合作者以雇用的农艺学家的形式提供技术上的协助和 (在那越过) 农民教农民。 美国农民也已经投资很多的时间在-之上农场工作和在研究而且解决问题方面。 美国合伙人已经最后负责有害之物控制决定。 产品在飞往的它自己的车棚中被合作者包装那作为在商业的客机上的宽松的货物美国, 而且根据男人名的农场在市场上销售。

算了，我还是不翻译这个了。我不理解ARG和MA代表什么啊，和boeing什么关系？并列的吗？楼主知道吗？

7.A8.D9.D10.A

NASA is taking research to new heights -- and lengths -- with an ambitious uping mission. 美国航空航天局即将进行一项雄心勃勃的任务，将研究推向新的高度，同时也拓展了研究领域。 ASTHROS (Astrophysics Stratospheric Telescope for High Spectral Resolution Observations at Submillimeter-wavelengths) is a balloon that will carry a telescope into the stratosphere to study the co *** os and "observe wavelengths of light that aren"t visible from the ground " NASA says. 美国航空航天局说，ASTHROS（亚毫米波长高光谱分辨率观测的天体物理平流层望远镜）是一个气球，携带望远镜进入平流层研究宇宙，并“观察地面上看不到的波长”。 A gondola will be used beneath the balloon to carry the instrument as well as the telescope which is made up of an eight-foot antenna and several mirrors lenses and detectors. 气球下面有吊篮，装有器械和望远镜，望远镜上有八英尺天线和几个镜子、透镜和探测器。 To do this successfully ASTHROS has to hit an altitude of around 130 000 feet (roughly 24.6 miles) which is about four times higher than mercial airliners fly! As for the dimensions of the balloon itself it measures 400 feet wide -- about the size of a football stadium according to the release. 为了成功完成任务，ASTHROS需上升到约130 000英尺（约24.6英里）的高度，比商用客机飞行高度高出四倍！据透露，气球本身400英尺宽，约为一个足球场大小。 The team has put finishing touches on cooling and electronic systems involved and in August engineers will perform tests to make sure they run *** oothly. 该团队已完成冷却和相关电子系统的收尾工作，工程师们将于8月份进行测试，以确保运行平稳。 NASA says the balloon is expected to make o or three loops around the South Pole in about 21 to 28 days studying regions in the Milky Way galaxy newborn stars nitrogen ions and more. 美国航空航天局说预计这个气球将绕南极两到三圈，耗时约21-28天，研究银河系的区域、新生恒星、氮离子等。 After the mission is pleted operators will send mands that effectively separate the gondola which is connected to a parachute from the ballon. The gondola will then fall to the ground so the telescope can be collected and refurbished for future flights. 任务完成后，操作人员将发送指令使吊篮和气球有效分离，吊篮上绑有降落伞。吊篮将着陆，以便收回并翻新望远镜，以备未来之需。

The September 11, 2001 attacks (often referred to as 9/11—pronounced "nine eleven") consisted of a series of coordinated terrorist[1] suicide attacks upon the United States, predominantly targeting civilians, carried out on Tuesday, September 11, 2001.That morning, 19 terrorists[2] affiliated with al-Qaeda[3] hijacked four commercial passenger jet airliners. Each team of hijackers included a trained pilot. Two aircraft (United Airlines Flight 175 and American Airlines Flight 11) crashed into the World Trade Center in New York City, one plane into each tower (WTC 1 and WTC 2). Both towers collapsed within two hours, followed by WTC 7 later that day. The pilot of the third team crashed American Airlines Flight 77 into the Pentagon in Arlington County, Virginia. Passengers and members of the flight crew on the fourth aircraft (United Airlines Flight 93) attempted to retake control of their plane from the hijackers; that plane crashed into a field near the town of Shanksville in rural Somerset County, Pennsylvania. As well as the 19 hijackers, a confirmed 2,973 people died and another 24 are missing but presumed dead as a result of these attacks.

Cindy 应该是女人的名字。 所以是 “她” 而不是“他”。Dear Cindy, I am very glad to receive your email. Hope everything is fine with you. As for your inquiry with regard to my past weekend, I spent the past weekend just like every weekend in the past six months, i.e., staying at home doing nothing except for eating/drinking, studying, and sleeping. During the weekends, I get so bored that I am both afraid of and scared of the forthcoming of weekends. I would like to make changes in the schedule during the weekend. However, life without you will never be exciting. That is the reason I am so looking forward to your coming to China next month. I have a lot of plans for us in terms of where we will go and what to do. Are you coming by Chinese airliners or American ones. Please email me your itinerary so that I can go to the airport to pick you up. Wish you a smooth journey and I"ll see you and talk to you then.Best regards,Cheng Zhang我就不给你中文翻译了。 你自己去理解，这样有助于提高你的英文。若有个别特殊的问题，可来问我。

巴旦木和扁桃仁没有很大区别，只是名字不同而已。巴旦木（Badam）是出产自世界各地、广受欢迎的一种坚果。“Badam”从学术上解释，起源于波斯语，表示“内核”的意思。汉语“巴旦木”是“Badam”一词的音译而非意译。“Badam”是Almonds（扁桃仁）在世界众多国家的名称，如印度、巴基斯坦和伊朗以及中国新疆，该名称因历史悠久的文化传统而被当地人熟知。在中国，有很多人把巴旦木和杏仁混为一谈，其实巴旦木和杏仁是两种不同的坚果。巴旦木是扁桃的内核，杏仁则是杏的内核，而扁桃和杏在植物学上来说，是两种不同的植物。巴旦木的肥水管理巴旦木属抗旱、耐瘠薄树种，对土壤适应性强。巴旦木园每年需秋耕1次。生长季应及时中耕松土，保持土壤疏松、透气、无杂草。一般无需灌水，但过度干旱时应适时灌水。雨季应注意排水，防止土壤积水引起根系腐烂。越冬前灌防冻水效果好。巴旦木树每年秋施基肥1次，以果实采收至土壤冻结前为宜。幼树施2～4t/667平方米农家肥或40～100kg/667平方米复合肥，结果树秋施基肥应酌情增加。巴旦木树生长季节应追肥2～4次。成年树每株每年需氮1kg、磷0.4kg、钾0.4kg。此外，应注意补充含锌、硼、钙等元素的复合肥。

"office是什么软件"？很多小伙伴想要在第一时间找到自己需要的软件，那么今天小编就为各位带来了"office是什么软件"，希望能够帮助大家，一起来看看吧！1. office密码破解软件(office 软件类型：电脑软件 软件介绍：OfficeRecovery 2013 Ultimate 是一款功能齐全的Office文档恢复手机软件，可以修补各种各样格式文件，包含doc,ppt,xls等格式的Office文件，及其ZIP文件，j4. office办公学习软件 软件类型：安卓APP 软件介绍：office办公学习培训给须要的客户朋友们产生十分便捷的学习软件，专为办公软件培训类群体设计方案，不但具备丰富多彩的作用更有简约时尚的页面等着你应用，适用各种各样不一样的课程挑选更有培训者线上协助你回5. office文件恢复软件 软件类型：电脑软件 软件介绍：宏宇office文件恢复指导是由宏宇软件发布的一款office文件恢复软件，支持多种多样office版本的应用，可恢复误删、恢复出厂设置、病毒性感染等各种各样丢失的office文件，修复效果非常的好，

　　“大数据”（BIG DATA）这个词，是2008年在维克托·迈尔-舍恩伯格及肯尼斯·库克耶编写的《大数据时代》这本书中首次提出的。“大数据”指不用随机分析法（抽样调查）这样的捷径，而是对所有的数据（近似于全样本）进行分析处理的一种方法。 　　1．什么是我们身边的大数据？ 　　“大数据”已经渗透到我们生活中的方方面面。比如我们打开手机淘宝，呈现在我们面前的界面是不一样的。它推送给我们的商品是不同的，而且这些商品往往真的能够抓住我们的需求和心理，这是为什么呢？ 　　其实这就是大数据分析出的结论。 　　淘宝这个平台，对每一个浏览过商品的人，购买过商品的人，都进行了全数据分析，可以轻松获取我们的很多信息。 　　例如我们的性别、年龄、家庭成员、喜好、是否结婚、是否有孩子、孩子的性别，甚至可以细致到你是爱穿休闲类的服饰，还是喜欢小清新类的服饰，或者是职业装类的服饰等等。通过你的每一次操作，收集到了这些数据之后，它经过分析和处理，进一步推测出了你可能会订购的商品，从而推送给你，让你花更少的时间检索而要花更多的钱进行消费。 　　例如你购买了一些孕妇类产品，可能在不久之后，它就会推送相关联的一些婴儿用品给你。 　　而我们消费后的评价与反馈，又使得他们不断改进自己，例如不同卖家的钻石星级，或者清退一些不合格的卖家等等这些行为，就是淘宝对自身的调整。 　　这种互利互惠的双回路的运转模式，可以看作是卖家与买家间的一种良性的互动方式，而这种互动方式在传统的卖场里面是不可想象，也难以实现的。 　　2．什么是课堂教学互动方式？ 　　课堂教学互动方式，则是指在课堂上，教师与学生之间的一种信息交流方式。 　　在传统的课堂中，师生之间的互动交流方式比较单一，上课就是教师在讲，学生在听，一种单方向的传导过程。 　　有人说，教师就是知识的搬运工，课堂上很少有师生之间的交流。 　　还有一种观念是，教师对学生提问，学生回答，就是师生互动。 　　显然，这种认识是肤浅的，这将使师生互动流于形式。师生互动的根本目的是要引导和培养学生的高阶思维。 　　因此，真正的师生互动应该定义为思维的碰撞、智慧火花的生发之源。 　　近些年来一直被提及的可汗学院的教学与学习方式，之所以受到关注的原因，恰恰就是它基于大数据分析，解决了课堂教学互动这个难题。 　　大数据之所以能实现课堂教学互动，是因为它具有三个主要特征：反馈、个性化和概率预测。 　　我们传统的课堂教学是一种单回路的学习，即教师给予，学生接受。我们对学生进行考核，然后对他们进行评价。 　　我们不会或者没有条件来通过学生的成绩来反思自己的教学内容或者方式是否是恰当的。 　　我们不能从学生身上获得真正有用的反馈信息来改变自己的教学内容和行为。 　　所以说，传统的课堂教学是一种单回路的方式，根本没有实现师生间的良性互动。 　　此外我们的教学内容在编排上，考虑的是处于平均水平的学生，而这种水平的学生其实在现实中可能根本是不存在的。 　　换句话说，我们的教学没有照顾到“好”学生，也忽略掉了那些“差”学生，甚至连我们认为的中等水平的学生，也是不存在的，因为他们是平均后虚构出来的群体。 　　所以，我们的教学根本没有针对学生做出个性化的设计，这是教育普及大众化不得不做出的取舍。 　　传统的教学是没有反馈或反馈较少（没有时间或实在照顾不到，分身乏术），没有个性化，从而更谈不上有概率预测的一种教学。 　　而大数据下的新的课堂教学互动方式，却可以改变这种状况。 　　1．参考案例 　　维克托·迈尔-舍恩伯格及肯尼斯·库克耶编写的《与大数据同行——学习和教育的未来》一书，举了可汗学院的例子。 　　2004年，可汗是一个刚从哈佛商学院毕业一年的基金分析师，给自己的表妹辅导数学。 　　由于他们生活在不同的城市，因此，他在互联网上为她进行辅导，从此永远地改变了教育的世界。 　　他编写了若干程序来协助教学，这些程序能生成数学习题，并显示孩子们提交的答案是否正确。 　　同时，也收集数据，程序可以追踪每个学生的答对和答错的习题数量，以及他们每天用于作业的时间等等。 　　后来在此基础上创建的可汗学院，之所以可以闻名于世，就是因为它收集有关学生行为的数据，从中获取有用的信息来改变教学内容的设计，为每个学生定制个性化的学习方案。 　　可以说数据就是可汗学院运作的核心所在，大数据的支撑，互联网技术的飞速发展，使得相隔千里的师生之间形成了有效的课堂教学互动。 　　它改变了我们对面对面才能达成互动的传统认识。 　　此外，还有一个关于斯坦福大学吴恩达与他的机器学习课程的例子。 　　吴教授将课程放到了网上，他追踪学生与视频互动的行为。 　　在什么地方按了暂停键，什么地位按了重复键，在什么地方放弃了继续听课，他的目的不是督促学生学习，而是反思学生卡在了什么问题上，哪些教学内容难以理解，从而对课程进行调整。 　　例如，他发现学生本来都是正常的按顺序进行网上学习，但是很多学生在学习第7课时，都会去回看第3课的一个关于数学知识的复习课。 　　于是他发现，原来是因为第7课解决某个问题时，需要用到第3课复习到的一个数学公式，而很多学生并没有记住，因此他就对第7课时的教学视频做了改变，会自动弹出一个弹窗帮助学生来复习数学公式。 　　还有一次，他发现学生在学习第75课到第80课时，正常的学习秩序被打乱了，学生以各种各样的顺序反复观看这几节课。 　　他通过反复分析，发现学生的行为是在反复理解概念，于是他将这部分的教学内容制作的更加精细，更有助于帮助学生理解概念。 　　【 评价】 　　这是一个典型的大数据分析下，课堂教学互动变革实现了教学反馈的例子。 　　觉得我们传统的教学，只是通过每天判一判学生的作业，看一看他们的考试成绩，是无法得到这些动态的数据的，更无法得到改变我们教学内容与方式的有价值的信息。 　　于是我们的教学可能几年甚至几十年都在重复相同的内容和动作。因为我们不知道学生究竟是如何进行学习的。 　　2．参考案例 　　还有一个例子是关于“半岛大学”的暑期班项目，他们使用可汗学院的数学课程教授来自旧金山湾区贫困社区的中学生。 　　在课程一开始，一个七年级的女生的成绩在班里一直垫底，在整个暑期的大部分时间中，她一直是学得最慢的一个学生，但是在课程结束后，她的成绩是班上的第二名。 　　可汗对此感到好奇，于是调取了她完整的学习记录，查看她每一道习题和解题的时间，系统创建的图表对她学习进行的描绘，发现他很长时间都徘徊在班级的底部，直到在某个事件点上突然直线上升，超过了几乎所有的学生。 　　这充分说明，当学生以自己最适合的步调和顺序进行学习时，即使一个被看似没有能力的“差生”也是可以变为优等生的。 　　【 评价】 　　这是一个典型的大数据分析下，课堂教学互动变革实现了个性化教学的例子。 　　如果这个女孩放在我们传统的基于小数据的教学课堂上，几次考试的成绩都不理想，可能她就会被我们归类为“差生”，于是各种补习加各种辅导，完全打击了她的自信心，成绩的阴影甚至会影响到她的一生。 　　而可汗学院的课程，利用数据监控了她的所有的学习过程，时间是一个连续的变量，针对她的特点设计了适合她的习题，循序渐进，激发出了她最大的能量。 　　她完全根据这种个性化的定制，按照自己的学习节奏进行学习，不用去关注到其他人的学习进度与成绩。细思极恐，我在想我们的教育究竟扼杀掉了多少这样的人才？ 　　我们真的应该好好认清大数据带给我们的课堂教学互动的变革，这种变革很多时候甚至不是技术上的，而是理念上的。 　　在反馈与个性化的基础上，大数据的更大的优势就体现在了概率预测这方面了。 　　例如我们可以对学生个体为提高其学业成绩需要实施的行为作出预测。比如选择最有效的教材、教学风格、反馈机制等等。 　　其实，在小数据时代，我们跟学生家长所说的某些建议，比如您的孩子应该加强数学这方面的学习，您的孩子适合去学文科等等这些建议，其实也不是肯定的事实，也只是概率性的干预。 　　因为可能根据老师所谓的经验，这个学生选择学习文科，将来考上一本的可能性更高。而大数据与过去最大的区别是，我们是通过对事物加以测量和量化，以更高的精确度说话。它的预测准确率更高。 　　比如，大学的选课方面，可以根据你以往的学习基础以及学习行为，预测出你选哪门课的通过率会更高，你未来的职业规划怎样进行会更加顺利等等。 　　大数据所实现的这种概率预测，似乎与课堂教学互动方式的变革没有直接的关系。 　　但是仔细分析不难发现，这种预测其实是师生间互动的一种延续，我们对学生的影响不只局限于课堂上，而是延续到了未来选择的层面上，使得互动交流更上了一个台阶。 　　1．利用数据反馈信息调整课堂教学策略 　　以高考备考为例：　　上图是追踪某高中四年所有学生高考数学各知识点得分率的情况，我们可以看出对其中一部分知识点的得分率维持在高位。 　　这就说明学校一贯的培养策略与日常教学方法是正确的，只需要保持即可，无论教师还是学生不需要过于焦虑，因为大数据反馈的结果对未来教学效果有一定的预测功能。 　　2．关注学生的个性化发展 　　大数据不仅对规模庞大的数据进行全样本分析，得到一般规律，更重要的是很能体现出个性，它可以记录下每一个学生的变化，方便教师针对每一个学生调整课堂教学方式。　　上图是大数据分析系统给出的某一个学生在一次考试中的情况，从图中可以看出，数学与物理是这个学生的优势学科，英语是这个学生最薄弱的学科，那么在进行改进策略制定时，要多听取英语老师的建议。 　　大数据可以帮助教师的课堂教学行为不像传统课堂那样，针对的是所谓的“平均水平”的学生授课，而是能照顾到每一名学生。 　　例如，利用信息技术监控学生的课堂测试与课堂练习情况，随时调取任意学生的过程进行点评，统计每一名学生过程中出现的问题，这样教师对课堂进程的判断不是根据经验，而是根据实际情况随时调整。 　　总之，课堂教学互动方式的变革，不应该只是技术层面上的变革，媒体技术，网络平台的建设已经非常的成熟了，我们需要的变革是组织变革，是思想的变革。 　　现在流行的微课、慕课（MOOCs）其实就是大数据渗透到教学互动领域冰山的一角，形式并不重要，重要的是隐藏在这些形式下的数据所反映出来的学生行为，以及反馈给教师的教学信息，从而引起他们的思考和改变，形成双向的回路，实现真正的“互动”，这才是大数据真正的价值。 大数据下的教师要成为“数据脱盲者”，我们需要通过读取数据来追踪学生的进步，通过概率预测解释什么是对学生最有效的学习。 　　我想这应该意味着我们需要建立一套完善的系统，在这个系统中，有数据处理的专家，有解读数据分析数据的分析师，有利用数据改善教学的教师。 　　只有在这个良性循环的系统中，才能真正实现课堂教学互动，呈现个性化的教学，让教育针对每一个孩子。 　　希望我们的教育和教学可以因为大数据而发生真正的变革。

在命令窗口中执行：>>loadXXX.mat就可以打开mat文件并加载里面存储的变量了

慕课无法隐藏自己所学的课程。慕课没有隐藏自己所学的课程的功能。慕课（MOOC），即大规模开放在线课程，是互联网+教育的产物。英文直译大规模开放的在线课程(MassiveOpenOnlineCourse)，是新近涌现出来的一种在线课程开发模式。所谓慕课(MOOC)，顾名思义，M代表Massive(大规模)，与传统课程只有几十个或几百个学生不同，一门MOOCs课程动辄上万人，最多达16万人。