摘要
在机械原理学术界，围绕纯滚动高付的约束数的证明，曾有过争论。本文从力学观点进行分析并提出初浅的看法。
The proof of the numbers of cons train of a higher pair of pure rolling hed ever been disputed in the academic circles of the theory of machines. This paper analyzed it from the mechanical standpoint and put forward elementary view
