以圆矢量函数和媒介齿条为工具，推导了接触迹方程，讨论了接触迹的特性。

Using circle vector function and medium rack as tools, the equation of contact trace is deduced, and its characteristic is discussed.

youdao

以圆矢量函数和媒介齿条为工具，推导了接触迹方程，讨论了接触迹的特性。

Using circle vector function and medium rack as tools, the equation of contact trace is deduced, and its characteristic is discussed.

youdao