钢材

Extended cutting capability,iasier hand-feed and longer tool life are realized.

手动进给方便，使用寿命长，适用於模具等合金工具钢到普通钢材的加工。

Derives the formulae for calculating the distortion and stress on the acting surface of flexspline load in the drive process of the harmonic gear drive with three-wave wavegenerator;(2) analyzes and compares the performance of plastic and steel products under light load drive and calculates the probably reached limit of drive ratio for both types of flexsplines under the same load;(3) applies the harmonic gear drive with three-wave wavegenerator to the small-sized multiple-revolution electric device of valves by taking into consideration of the low limit of the drive ratio for the harmonic gear drive with three-wave wavegenerator made of plastics, improves the design on the main drive mechanism of the traditional small-sized multiple-revolution electric device of valves, and validates through examples the feasibility for the harmonic gear drive with three-wave wavegenerator made of plastics to be applied to the small-sized multiple-revolution electric device of valves. Finally the author performs calculations on the two types of the flexsplines of the harmonic gear with three-wave wavegenerator by using the finite element method and analyzes the causes for the errors.

本文根据三波谐波齿轮传动的运动变形特点，采用弹性薄壳的力矩理论，推导了三波谐波齿轮传动柔轮载荷作用面上的变形及应力计算公式；分析比较了轻载传动情况下塑料和钢材的性能，计算了塑料制谐波柔轮和钢制谐波柔轮在相同载荷情况下可能达到的传动比极限；对塑料制及钢制三波谐波齿轮柔轮进行了有限元计算，分析了产生误差的原因；针对三波塑料谐波齿轮传动比极限低的特点，将之运用于小转矩多回转阀门电动装置中，对传统的小型多回转阀门电动装置的主传动机构进行了改良设计，并通过实例验证了三波塑料谐波齿轮传动在小转矩多回转阀门电动装置中应用的可行性。

A Lithium-Bromide absorption refrigerating machine is designed using inclined fin tubes as heat transfer elements for absorber and using other corresponding heat transfer enhancement elements for the other heat exchangers. Comparing with the machine of using bare tubes, this unit can save bronze by 19%, steel by 28%, space by 36%. And a lot of operating expenditure can be reduced at the same time.

用斜槽管作为吸收器中的传热管，并在其它传热部件中采用相应的强化传热元件，设计了一台溴化锂吸收式制冷机，与全部采用光管的机组相比，节省了19%的铜材、28%的钢材，整体体积减小了36%，同时还节省了其它费用，显示出较好的经济效益。

Thus the heat - exchange effect can be enhanced and the manufacture cost of equipment can be reduced.

较好解决了2种热交换介质因导热系数不同而导致的热交换不平衡和设备体积庞大、消耗钢材偏高的问题，从而有效地提高了换热器的换热效果，降低了设备的制造成本。

The object of heat treatment is to make the steel better suited for some specific application.

热处理的目的在于使钢材更好地适用于某一特定的用途。

HIC is a common testing method in corrosion experiments.

0前言HIC试验是检测钢材氢致裂缝敏感性的方法。

On the other hand , steel is a high cost material compared with concrete.

另一方面，与混凝土相比，钢材的成本要高的很多。

High strength of the steel products, ensure the machine more safety and reliable.

采用高强度的钢材制造，设备更加安全可靠。

Are commonly used in the current domestic and international high demand of steel material to be used as molds.

都是目前国内国际常用的高要求的模具钢材用料。

To make high quality steel it takes fire and water, and lots of it!

制造优质钢材需要耗费火与水，而且是大量的！

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。