Coal-mining Enterprise 煤炭采掘业
enterprise of the coal mining 煤炭企业
the enterprise of a coal mining 煤炭企业
abnormal coal mining face 不规则工作面
advancing coal mining 区带毛细管电泳(CZE); 毛细管电泳法; 前进式采煤
artillery mining coal 炮采放顶煤
Baitun coal mining area 白屯煤矿区
Baojishan Coal Mining Area 靖远宝积山
Central Coal Mining Research Institute 煤科总院西安分院
Central state-owned coal enterprise 中央煤炭企业
Chahe coal mining area 岔河井田
Chengjiao Coal Mining 城郊煤矿
coal enterprise 煤碳企业; 煤炭企业; 煤炭工业; 循环经济; 煤矿企业
coal enterprise and group 煤炭企业集团
coal mining 采矿; 采煤; 水处理; 煤矿; 系统思想; 矿层开采; 煤炭开发; 揭煤; 煤炭开采; 采煤方法; 煤炭采掘; 煤层开采; 煤矿开采; 煤矿用炸药; 煤炭
coal mining accident 煤矿事故
coal mining actions 煤层开采对策
coal mining ammonium nitrate explosives 硝铵炸药; 小波包变换
coal mining and collapse period 采煤塌陷阶段