This paper gives an introduction to the technology in gear designing and gear making and to the developments on gear processing machines.

本文介绍了世界在齿轮设计、齿轮制造技术，以及齿轮加工机床方面的制研成果。

youdao

This paper gives an introduction to the technology in gear designing and gear making and to the developments on gear processing machines.

本文介绍了世界在齿轮设计、齿轮制造技术，以及齿轮加工机床方面的制研成果。

youdao