Studied the shape characteristics of mechanical standard parts as well as the development methods of parts library.

研究了机械通用标准件的外形特征，以及标准件库的建立方法。

youdao

Studied the shape characteristics of mechanical standard parts as well as the development methods of parts library.

研究了机械通用标准件的外形特征，以及标准件库的建立方法。

youdao