milling和grinding

关于铣床的一小段翻译10
Using the Micrometer Dials
Most milling machine manual feeds are equipped with dial indicators. If you know how far you want to feed the bed, you can set the dial indicator to that number (in thousandths of an inch). Just turn the locking ring counterclockwise to free the dial indicator, set the dial, and lock in the setting. Be certain that the backlash in the mechanism driving the table is taken up prior to setting the dial indicator.
Many modern machines have digital readouts. These are preferred since they measure the bed position directly so you need not be concerned with backlash. They also readout bed position in metric units if desired

英语翻译
明天就要考咯!
Milling can produce flat or angled surfaces,grooves,slots.gear teeth,and otherprofiles,depending dn the shape of the cutters being used.

Explain how,in the short run,a flour milling company can increase the quantity of flour it produces
怎样用经济知识（短期生产）解释

英语翻译
milling removes metal with a revolving ,multiple cutting edge tools called milling cutter.milling cutters are made in many styles and sizes .some have as few as two cutting edges and others have 3 or more.

机械英语The planer type of milling machine is a bed type machine which is usually very large.
The table moves under an arch very much as the table of a planner.

高手们帮帮忙（模具英语）
up milling
up milling is the condition when the work is fed against the direction of the rotating milling cutter.the chip is very where the tooth first contacts the work and increases in thickness to a maximum where the tooth breaks out of the work.the initial tooth contact usually occurs in clean metal and ends by lifting or peeling off the rough surface scale.because of this effect,this is the preferred method for machining sand castings,forgings,or metals thae have a rough or hard abrasive surface scale.workpieces must be rigidly held to offset the tendency of the cuttiing foorces to lift or pull the work out of the vise or fixture.
down milling
down milling differs from up milling in that the work is fed in the same direction as the rotating cutter.the cutter tooth starts into the work with a maximun cut thickness and ends with a thin chip,resulting in less cutter wear.the tendency of the cutter is to hold the work down and,in fact,to pull the workpiece under.down milling must be accomplished only in machines that have been specifically designed for this method of cutting.machines that are made with backlash in the leadscrew or feeding mechanism are unsuitable,since any looseness will allow the cutter to draw the workpiece ahead and take bites that are too large.down milling usually produces a better surface finish on harder steels than does up miling.chips are disposed of more readily and are less likely to be carried along by the teeth.it is the method that is usually selected for milling operations on slender and intricate parts.fixture design is simplified.less power is required.increased cutting speeds and feeds are practical.
这里面打错或漏点的都改好了。
the chip is very thin where the tooth first contacts the work and increases in thickness to a maximum where the tooth breaks out of the work.the initial tooth contact usually occurs in clean metal and ends by lifting or peeling off the rough surface scale.because of this effect,this is the preferred method for machining sand castings,forgings,or metals thae have a rough or hard abrasive surface scale.workpieces must be rigidly held to offset the tendency of the cutting forces to lift or pull the work out of the vise or fixture.
down milling
down milling differs from up milling in that the work is fed in the same direction as the rotating cutter.the cutter tooth starts into the work with a maximun cut thickness and ends with a thin chip,resulting in less cutter wear.the tendency of the cutter is to hold the work down and,in fact,to pull the workpiece under the cutter.

英语翻译
The airframe manufacturer reported that windmilling flight tests were successfully demonstrated at airspeeds as low as 240 knots with N2 windmilling rotor speeds as low as 8%

Most basic milling machines are of column-and-knee construction ,employing the
翻译的越准确越好

英语翻译
A milling machine removes metal by rotating a multi-toothed cutter that is fed into the moving work piece.The spindle can be fed up and down with a quill feed lever on the head.

求翻译一段英文!
如下：
Chatter stability of milling operationshas been gaining significant attention with a view to improving the material removalrates in high speed machining of aluminum alloys and low speed milling of difficultto cut, thermal resistant alloys. This paper presents frequency and discrete timedomain chatter stability laws for milling operations in a unified manner. The timeperiodic dynamics of the milling process are modelled. By averaging time varyingdirectional factors at cutter pitch intervals, the stability lobes are solved directlyand analytically. When the process is highly intermittent, which occurs at highspeeds and low radial depth of cuts, the stability lobes are more accurately solvedeither by taking higher harmonics of directional factors in frequency domain, orby using semi-discretization method. This paper compares the stability solutionsagainst the numerical solutions and experiments, and provides comprehensive mathematicaldetails of both fundamental stability solutions.
求大神翻译成英文,感激不尽!

英语翻译
When milling,one should be aware of the difference between conventional,and climb milling.In conventional milling,the workspace is fed into the rotation of the cutter.This type of cut requites lower forces and is preferred for roughing cuts.In climb milling,the work moves with the rotation of the cutter.This produces a better finish.It is not recommended if the workpiece cannot be held securely or cannot support high forces.

英语翻译
the high point of a milling year is harvest time.In our part of south-central Michigan,harvest came 2 weeks after the first full moon in July
After the wheat was poured into water and cleaned,it was weighed.
stuck on the wall.
My mill memories are mostly happy ones.Since bread is important,producing the flour from which it's made is a needed and noble business.I'll always be proud to have been a miller's daughter.

间接引语含义
详细一点,如"Are you a relative of the patient"?Dr Millington asked the caller