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The CNC grinding wheel-dressing system is the key technique to improve the quality of gear cutter profile modification.

CNC砂轮修形系统是提高齿轮刀具修形质量的关键技术，对其进行系统与深入的研究，。。。

ABSTRACT The level of the gear cutter profile modification represents the level of the gear manufacturing technology in the country.

齿轮刀具的修形水平是一个国家齿轮制造行业技术水平的重要标志。

The principle and method of designing the involute tooth profile of plate gear milling cutter with AutoLISP program embeded in AutoCAD are introduced, and a design example is presented.

介绍了用AutoCAD内嵌的AutoLISP程序设计盘形齿轮铣刀渐开线齿形的原理及方法，并给出了设计实

The CNC dressing system based 32-bit micro-computer, and the DNC dressing system developed in this paper plays an important role in the practical production, and it is helpful to study the gear cutter profile modification system deeply.

本文完成的基于32位工业控制机的砂轮修形CNC系统，以及分布式砂轮修形DNC系统，已获得推广应用，这对齿轮刀具修形系统的进一步深入研究具有促进作用。

By using the profile modeling machining equipment of helix angle, a new method about grinding rake face of gear cutter hob on tool grinder is presented.

提出一种用螺旋角仿形加工装置在工具磨床上刃磨齿轮滚刀前刀面的方法。

Some applications of the Bezier curve to computer graphics are introduced in this paper. These include generating flowered patterns approximate drawing of profile of machine parts, designing the shape of industrial products with free curve, making three-dimensional picture of ratators with the Bezier curve as the generating line and plotting charts by smoothing out the graphs of discrete data of scientific experiments.

本文介绍Bézier曲线在计算机绘图中的某些应用，例如生成花纹图案，近似绘制机件的圆弧轮廓图，工业产品自由曲线轮廓的构形设计，生成以Bézier曲线为母线的旋转体三维图象，利用Bézier曲线的凸包性对离散的科学实验数据进行平滑处理绘出数据图表等。

Gene expression profile data can be used to study the relationship between gene functional modules and disease genetic heterogeneity.

采用基因表达谱可以研究基因功能模块与疾病异质性之间的关系。

The profile is represented by three links: geometrical element link, topological constraint link and dimensional constraint link.

轮廓描述由三部分组成：几何描述、拓扑约束描述和尺寸约束描述。

The mapping of Geophysical profile is a necessary link of data processing.

物探剖面的绘制是物探数据处理过程中的必要环节之一。

It is shown from the analysis results that in order to meet the requirement that the calculated geostrophic flow results can reflect the practical current profile structure, it is practicable to select the 700 m level as level of no motion in case of water depth greater than 700 m and to select the bottom boundary as level of no motion in calculating the geostrophic flow.

结果表明，为使计算结果可以反映实际的流速剖面结构，当水深大于700 m和小于700 m时可分别选取700 m层和底边界作为地转流动力计算零流面。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。