进口汽车在我国使用普遍,役令甚长,配件需要量不断增加。为节省外汇,有必要自制配件,但首先遇到的是测绘工作。变速器是一个易损部件,渐开线花键在零件中的比重极大。鉴于它的齿短,有的还倒了角,这就给测绘工作带来许多困难。本文拟用标准化方法处理有关数据,使之达其测绘准确之目的。 Imported cars are commonly used in our country, the service is very long, increasing demand for spare parts. In order to save foreign exchange, it is necessary to make self-made parts, but the first one is the mapping work. Transmission is a fragile part, involute splines in the proportion of the great. In view of its short teeth and some also upside down, this has brought many difficulties to the mapping work. This paper intends to use standardized methods to deal with the relevant data, so that its accurate mapping purposes.