机械工程英语阅读翻译

⑴ 请问《机械类专业英语阅读教程》怎么翻译

English reading course for mechanical major

⑵ 机械专业英语在线翻译

合模机：Die Machine
移出行程：Trip out
开模空间：Open moli space

⑶ 翻译阅读（英语）

这是我的全家福，爷爷的名字是亨利.李，奶奶的名字是 珍.李。皮特和海伦是我的父母。我有一只猫它的名字叫喵喵。我的名字是娜塔莎，我有12岁了。我的猫仅仅一岁，我爱我的家人和猫.

⑷ 求机械类专业英语阅读教程第22课的翻译

呵呵，这个easy，我专业就是这个的，正好英语也还不错，翻译如下：回

铣床，是利用旋转的铣刀与工答件进行相对运动进行材料切除的一种机床。

铣刀安装于刀杆上，通过垫片或者套筒进行定位。刀杆的一端固定于主轴上，刀杆的另一端则安装于刀杆座上的回转轴承上。

⑸ 求英语达人帮忙翻译一篇机械类英语文章，急！谢谢

Gear Materials (Reading Material)
齿轮材料（阅读材料）

Gears are manufactured from a wide variety of materials, both metallic as well as nonmetallic.
齿轮由多种种类的材料制造，包括金属材料和非金属材料。

As is the case with all materials used in design, the material chosen for a particular gear should be the cheapest available that will ensure satisfactory performance.
在设计中可以使用多种材料的情况下，对于特定齿轮，应当做到选用满足使用要求下的最便宜的材料。

Before a choice is made, the designer must decide which of several criteria is most important to the problem at hand.
在作出选择前，设计师必须决定在众多设计准则中哪个是当前最重要的。

If high strength is the prime consideration, a steel should usually be chosen rather than cast iron.
如果高强度是第一要考虑的因素，通常就选择钢材而不选择铸铁。

If wear resistance is the most important consideration, a can be made, for problems involving noise rection, nonmetallic. Materials perform better than metallic ones.
如果耐磨性是最重要的因素，可以选用非金属材料要比金属材料更好，同时也可以解决降低噪声的问题。

However, as is true in most design problems, the final choice of a material is usually a compromise.
然而，在大部分实际设计问题中，对材料的最终决定往往是一个折衷的方案。

In other words, the material chosen will conform reasonably well to all the requirements mentioned previously, although it will not necessarily be the best in any one area.
换句话说，材料的选择要考虑到合理的达到所有的预定要求，尽管这样就不能在其中任何一方面达到最好。

To conclude this discussion we will consider the characteristics of various metallic and nonmetallic gear materials according to their general classifications.
为了总结这次讨论，我们将按照通常的分类来考虑多种金属和非金属齿轮材料所具有的特性。

Cast Irons
铸铁

Cast iron is one of the most commonly used gear materials.
铸铁是最常用的齿轮材料之一。

Its low cost, ease of casting, good machinability, high wear resistance, and good noise abatement property make it a logical choice.
它具有低成本，铸造性好，机械加工性能好，高耐磨性，以及高减噪性的特点，这些特点使铸铁成为一个合适的选择对象。

The primary disadvantage of cast iron as a gear material is its low tensile strength, which makes the gear tooth weak in bending and necessitates rather large teeth.
铸铁主要的缺点是，作为一种齿轮材料，铸铁的抗拉强度很低，这使得轮齿的抗弯强度很弱而且不能造出很大的轮齿。

Another type of cast iron is nolar iron, which is made of cast iron to which a material such as magnesium or cerium has been added.
另一种类型的铸铁是球墨铸铁，是在普通铸铁中加入了镁或者铈制成的。

The result of this alloying is a material having a much higher tensile strength while retaining the good wear and machining characteristics of ordinary cast iron.
这种合金的特点是既具有高的抗拉强度，又保持了普通铸铁的高耐磨性和优秀的机械加工性能。

Very often the combination of cast iron gear and a steel pinion will give a well balanced design with regard to cost, strength, and wear.
通常，铸铁大齿轮和钢制小齿轮的组合能够在成本、强度和耐磨性之间达到较好的平衡。

问题补充：Steel gear are usually made of pain carbon steels or alloy steels.
钢制齿轮通常由碳钢或者合金钢制造。

They have the advantage, over cast iron, of higher strength without une increase in cost.
它们具有比铸铁更高的强度，同时又没有是成本过高的增加。

However, they usually require heat treatment to proce a surface hard enough to give satisfactory resistance to wear.
然而，它们通常需要经过热处理，以生成表面的硬化层来达到足够的耐磨性。

Unfortunately, the heat treatment process usually proces distortion of the gear, with the result that gear load is not uniformly distributed across the gear tooth face.
不幸的是，热处理过程通常会使齿轮发生扭曲和形变，这样齿轮上的载荷就不能均匀的分布到轮齿的表面。

Since alloy steels are subject to less distortion e to heat treatment than carbon steels, they are often chosen in preference to the carbon steels.
合金钢具有变形量小的特点，因此比碳钢更适合热处理，它们通常比碳钢使用的更多。

Although it is not the purpose here to discuss the various heat treatment methods and their effect on the properties of materials so treated, the designer should be aware of

possible problems arising from the use of heat treated materials.

尽管这里讨论的目的不是热处理的方法和这些方法在材料上产生的不同影响，设计师仍然应当认识到对不用热处理材料的选择可能带来的各种问题。

⑹ 机械工程英语第二版叶邦彦_汉语翻译(机械工业出版社)--part2翻译...

网络知道上有，就是我上传的，你可以去下，我电脑里的删了，所以你可以搜一下

⑺ 求 机械制造工程专业英语 章跃主编 张国生 副主编 第一课后面的阅读材料AB2篇文章的中文翻译

请问是不是（a）ALLOWABLE STRESSES AND ALLOWABLE LOADS和（B）TYPES OF BEAMS?