论文部分内容阅读
据中国煤炭报报道、,开滦钱家营矿用宣化采掘机械厂制造的CTH-10型全液压钻车,1988年10月创岩巷单孔月进184·8m的最新纪录.
According to the China Coal News reported, Kailuan Qianjiaying Mining Xuanhua Mining Machinery Factory manufacturing CTH-10 full hydraulic drill, in October 1988 a rock hole single-hole into the latest record of 184 · 8m.