机械专业英语翻译(百分百非水货)

1、精选优质文档-倾情为你奉上P91)机械工业用于制造产品的材料，可以分为金属材料、合成材料、陶瓷和复合材料四大类。2)金属可分为有色金属和黑色金属。3)塑料可分为热固性材料和热塑性材料。1 Engineering materials those go into produces can be divided into metallics,polymers,ceramics and composites。2.Metallics can be divided into ferrous and nonferrous metals.3plastic can be divided into thermos

2、etting plastic or thermoplastic plastic.P171)材料的特性可分为物理特性和化学特性两大类。2)塑性材料在拉伸载荷下应力达到屈服强度时，产生塑性变形。3)除软钢等材料有明显的屈服点外，合金钢和有色金属等塑性材料无明显的屈服点。1。The properties of materials can be divided into physical and chemical properties.2.The plastic materials will produce plastic deform when the strain reaches the yiel

3、d point.3.The plastic material such as Alloy steel and nonferrous metals do not have a obvious yield point Except mild steel has a obvious yield point.P391)将金属从矿石中分离出来的过程叫冶炼。2)几乎所有的黑色金属中都含有碳。影响铸件质量的因素很多1.To prevent the hot metal from sticking to the sand is called smelting.2.Almost all the ferrous m

4、etals contains carbon.3.There are many factors affecting the quality of the castingP451）今天，在锻造工艺中，金属的成形并非总是采用加热和锻打的方法。2）液压机和锻锤被广泛地用于锻造工艺中。5）锻造设备的行为是锻造技术发展的一个重要课题，因为它直接影响着锻造工艺的效果。1)Today, forging is not the process of shaping metal by heating and hammering.2)Hydraulic presser and the hammer are wildl

5、y used in metal working3)Equipment behavior influences the forging progress since it determines the feasibility of forging a part P661)螺杆用来传递远动和动力。2)铆接既可以是搭接，也可以是对接。3)焊接残余应力是由于热膨胀和收缩不均元产生的。4)在焊接设计时。要考虑安全因素。1.Screw threads are used for the transmission of motion and power.2.A riveted joint is either

6、a lap or a but join.3.The residual stresses of welds are due to uneven thermal expansion and contraction.4.Safety factors should be used in welding design.P721)带传动和链传动联接两个或多个轴来传递旋转运动和动力。2)链传动的传动比计算跟齿轮传动一样，即与齿数比成反比。3)链长必须是节距即一个链节的长度的倍数，节距的数目最好是偶数。1.Belts and chains are used to connect two or more sha

7、fts for the transmission of rotation and power.2.The speed ratio of a chain drive is the same as that for a gear drive namely ,the inverse ratio of the tooth numbers.3.The chain length must of course be a multiple of the pitch and its preferable that number of pitches be even.1)P792)轴承的润滑有的润滑滑，水润滑，脂

8、润滑或气润滑(如空气）4）电磁轴承最初是 为地球卫星上的 应用而开发的，后来 开始在 工业装备中应用5）滚动接触轴承没有粘滑效应，启动转矩小，运动摩擦力小1.The lubricant in bearings is oil ,water,grease,or gas such as air.2.Electromagnetic bearings were originally developed for the application in earth-orbiting satellites but are beginning to be used in industrial equipment.

9、4.Bearings with rolling contact have no slip-stick effect low staring torque and running friction.P861）为了生产出满意的齿轮驱动系统，必须要有齿轮设计的知识，包括设计的限制条件2）如果要正确运转的话，两个口齿齿轮的齿距必须相等5）锥齿轮可以有人一转动比，但通常不超过61.One must have a working knowledge of gear design including design limitations ,in order to produce a satisfactory

10、 gear drive system.2.The circular pitches of meshing gears must be equal if they are to operate properly.5.Bevel gears may have any other ratio but ordinarily its not over 6.P931)液压系统由动力源、执行文件、控制文件和辅助元件组成2)根据动力源的不同，液压系统可分为恒流系统和恒压系统。3)齿轮泵是容积泵中结构最简单但效率较高的一种泵。4)液压系统中另一种重要元件是阀，主要有三种类型的阀：溢流阀、流量控制阀和方向控制阀。

11、1.Any hydraulic system can be divided into four logical segments :the power input segment, the power transmission system, the control devices and the power output portion.2.Depending upon the power source ,systems are either constant flow system or constant pressure system.3.Gear pumps are the simpl

12、est type of fixed displacement hydraulic pump available.4.Another important type of hydraulic element in hydraulic system is value. There major value types -relief valves ,flow control values and directional control valves.P1001）在车床加工中，共建的旋转为主运动，刀具的运动为进给运动3）磨床加工形成的切削非常细小，以至难于为粉尘相区别4）机械加工在工业生产中得到了非常广

13、泛的应用，它可以改变零件的几何形状，从而得到所需要的尺寸和表面质量1.During turning process ,the motion of work pieces is rotary primary motion while the appropriate feed motion are imparted to the tool.2.The chips generated by grinding machine are so small that its hard to distinguish them from dust.3.Machining can change the geome

14、tric configurations so that the demanded dimensions and finished are acquired.P1191）电化学加工是一种电解过程，依靠电解池作为阴极和工作作为阳极发生电化学分解去除金属2）类似电化学加工过程的第一个专利是在 1929年由Gusseff申请的3）工作和加工工具分别被制成电解池的阳极和阴极，它们之间的电势差大约是10伏4）由于其速度和其操作简单，电化学去毛刺常用一种固定的，稳定的阴极工具进行加工1)没有啊！2)The first patent on a process resembling ECM was filed

15、by Gusseff in 19293)The workpiece and tool are made of the anode and cathode ,and a potential difference ,usually fixed at about 10V4) Due to the rate and the easy controlling ,deburring often made by a fixed, steady cathode toolOwing to its speed and simplicity of operation ,electrochemical deburring can often be performed with a fixed,stationary cathode tool P1441)如果你想找到一份好工作，你就应该有一份精心准备的履历书。2)在动手写履历书之前，首先要正确地评价自己，收集有关资料。1.You should prepare a good resumes if you want to have a good job. 2.Before you can write a resumes effective you must take a self-assessment and collect