ring function

The Polycrystalline diamond ( PCD) has been applied widely in industrial fields as a new cutting tool material of high hardness and good wear-resistance. This thesis designed a type of PCD groove cutter by means of piston ring groove function.

随着聚晶金刚石（PCD）刀具材料在切削铝合金上的广泛应用，本文根据活塞环槽的性能要求及铝合金的切削特点，确定了PCD槽刀几何角度，设计了PCD环槽成型刀具。

Radii Distribution Function, Ring Distribution Function and Plane Distribution of the Ware Function

波函数的径向分布函数、环分布函数和平面分布函数

How to fully use the o sealing ring function effect

O形密封圈功能的充分发挥

According to internal and external ring displacement curve function relation of piezoelectric ceramic actuator, precise model is proposed;

接着根据压电陶瓷内外环位移曲线的函数关系，提出本课题设计的压电驱动器模型算法，在精度和模型可实现方面进行了改善；

By this, raise some practical and effective measures to bring sealing ring function and effect into full play in many ways, such as improving superficial processing quality, choosing proper velocity in motion and sealing gap, improving O sealing ring quality and so on.

在此基础上，又从提高表面加工质量、选择适当的运动速度、密封间隙、改善O形密封圈自身质量等多个角度提出了充分发挥密封圈功能的几条切实可行的措施。

The definitions, the function forms, the calculation methods and the significance on theoretical researches of the three distribution functions were discussed in this paper. They are radii distribution function, ring distribution function and plane distribution function of the wave function.

讨论了波函数的径向分布函数、环分布函数和平面分布函数的定义、函数形式和推导方法以及理论研究上的意义。

Hunan Power networks will be developed rapidly in the Eleventh Five-Year Plan Period. The problem of 500/ 220 kV electromagnetic ring network function becomes more and more serious.

“十一五”期间湖南电网发展迅速，500/220kV电磁环网运行问题日益突出。