由于矿体小，传统印石采制主要是手工挖掘。
Because of the small mine, usually the ore was excavated by hand.
介绍了SX2型旋转缩分器的结构特点及其在煤炭机械化采制样装置中的应用。
The structure of new-designed SX2 rotary type coal division device is introduced in this paper.
介绍了SX2型旋转缩分器的结构特点及其在煤炭机械化采制样装置中的应用。
The structure of new-designed SX2 rotary type coal division device is introduced in this paper.
应用推荐