This paper describes the new features as well as factories and mines with crane components, the main structure of the suction system design theory.

文章描述了矿用起重机的功能及各组成部件主要结构和吸料系统设计的理论基础。

youdao

This paper describes the new features as well as factories and mines with crane components, the main structure of the suction system design theory.

文章描述了矿用起重机的功能及各组成部件主要结构和吸料系统设计的理论基础。

youdao