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- Keywords coal mining;roof managemenet;actuality; 关键词煤矿;顶板管理;现状;
- Keywords coal mine;bolting support;yow &line space; 煤巷;锚杆支护;间排距;
- Keywords coal mine;sidewall cracking;mechanism; 煤矿;井壁破坏;机理;
- Keywords coal mine;electric mtor;energy saving; 煤矿;电动机;节能;
- Keywords coal mine;?dustproof;?method; 煤矿;防尘;方法;
- Keywords coal mining area;industry intergrowth;model; 煤炭矿区;工业共生;模式;
- Keywords coal mine;hydrogeology in mining area;model 3D system; 煤矿;矿区水文地质条件;三维系统模型;
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- Keywords coal mining face;unwonted emission;technology measure; 回采工作面;尾巷;异常涌出;技术措施;
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- Keywords coal mining;surface movement;Aeolian sand;loess; 采煤;地表移动;风积沙;黄土;
- Keywords coal mining;clean coal;environment;desulphurize; 煤炭;洁净煤;环保;脱硫;
- Keywords coal mine;catalytic sensor;sulphuretted hydrogen;poison; 煤矿;催化元件;硫化氢;毒性;
- Keywords Coal mine Succor technology Laneway penetration; 煤矿;救灾技术;地面透巷;
- Keywords coal mine;signal;telemetering;system;carrier wave; 煤矿;信号;遥测;系统;载波;
- Keywords coal mine;coal quality research;proximate analysis; 矿区;煤质研究;工业分析;
- Keywords Coal mine Safety supervision OSH legislation; 关键词煤矿;安全监察;安全立法;
- Keywords coal mine;ventilator;remote monitoring;intelligence; 煤矿;通风机;远程监控;智能;
- Coal mining has always been a dangerous occupation. 采煤向来是一种危险职业。
- General bituminous coal mining; Motor freight. 一般烟煤开采；汽车货运。
