工件

The definition of the processing of cryogenic treatment and its developing history and the effects on different works were introduced.

简述了深冷处理的定义、发展历史和对不同工件性能的作用效果。

A theoretical model for calculating the cutting angle with different crystal planes, orientations and tool orthogonal rakes are described in this paper. It is built with the ultra-precision cutting model by the principle of the maximum specific energy of shear deformation and the mechanism of change of the shear modulus with...

本文利用剪切变形比能最大及单晶材料不同晶面晶向剪切弹性模量不同的原理，结合超精密切削模型，从理论上计算出不同晶面、不同晶向及不同刀具前角超精密切削条件下的剪切角，得到其在不同切削条件下的变化规律，并由此解释了切削加工中由KDP晶体各向异性所导致的工件表面粗糙度的各向异性。

For acquiring the mean line of workpiece profile,a new kind of digital smoothing filter based on cubic generalized spline function was proposed.

为了提取工件表面轮廓中线，给出了一种基于三阶广义B样条函数的数字光滑滤波器。

With rapid development of the modern industrial technology, more and more complicated curved surface work-pieces ...

随着现代工业技术的飞速发展，复杂曲面工件在航空、航天、交通及能源等现代工业中的应用越来越广泛。

This paper analyses that tip angle of drill bit influences on cutting capability and life of twist drill, when the material and shape of work piece is different.

分析了工件材料、形状不同时，钻尖顶角的大小对麻花钻切削性能及寿命的影响，介绍了麻花钻的钻尖顶角的选择。

Finally, the general model of the ultra—high accuracy measurement about circular and cylindrical profiles parameters is set up.

本文通过对国内外圆和圆柱工件形状测量的研究现状和发展趋势进行了系统分析之后，围绕圆和圆柱轮廓的超精测量技术和特征分析理论做了如下工作。

A rotary rack for chromium plating on surface of cylindrical articles was developed.

研制出一种用于圆桶形工件镀铬的旋转挂具。

Grinding machine: for grinding flat or cylindrical workpiece, the outer surface of the grinder.

8研磨机：用于研磨工件平面或圆柱形内，外表面的磨床。

The system has avoided the traditional precision guiding rail needed by large area flatness measurement and established a high precision virtual datum plane in computer.

该系统摒弃了传统的大面积工件平面度测量所需要的高精度导轨等实物基准，而是通过在计算机中建立高精度的虚拟基准，达到了对太阳帆板平面度的高精度测量，并对这种特殊的仪器结构所造成的光斑特性进行了分析。

Metal heating, the workpiece exposed to the air, it often happens oxidation, decarbonization (ie, reduce the carbon content of the surface of steel parts), This is part of the surface properties after heat treatment has a negative impact.

金属加热时，工件暴露在空气中，常常发生氧化、脱碳(即钢铁零件表面碳含量降低)，这对于热处理后零件的表面性能有很不利的影响。

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。