钻孔风力排渣新技术在祁南煤矿突出煤层中的应用

钻孔风力排渣新技术在祁南煤矿突出煤层中的应用的英文翻译

基本释义

• New technology of pneumatic cutting removing for borehole drilling applied to seam with outburst potential in Qinan Mine