To pin down the size of an orbital, we take a contoursurface.
为束缚住轨道的大小，我们取一等值面。
2
With cylindrical coordination, this paper establishes the contoursurface equations and pressure Angle formula of the conical grooved CAM with translating conical roller follower.
借助柱面坐标，建立了圆锥滚子直动从动件圆锥槽凸轮的廓面方程和压力角公式。
3
This paper establishes the contoursurface equation of a torus CAM and presents a pressure Angle formula, it provides a simple and efficient method for designing this kind of cams.