相对旋转的三棱锥展开比拟

ANALOGY OF THE RALATIVE ROTATION WITH THE DEVELOPMENT OF A TRAINGULAR PYRAMID

本文专门研究了相对旋转的最一般形式，即旋转轴间的夹角是任意一个角度的相对旋转，将其比拟为一个三棱锥的展开，利用球面三角的方法解决了这个问题，并给出了一组计算公式和应用实例。

This prper studies particularly the generalest form of the ralative rotationwhich the angle between two rotary axies is unlimited.It is analogized to be the develop-ment of a triangular pyramid and the problem is solved by the method of the spherical trig-onometry.A set of formulas and the example are given。