半连续开采工艺
Cyclic-flow mining technology
采煤采气一体化
Integrated Coal Mining and Gas Extraction
采煤工尘肺
Coal worker’s pneumoconiosis
采煤工作面
Face
COALFACE
mining face
working surface
coal recovery face
coal wall
coal working face
Coal mining working face
working face
coal face
coal excavation working face
长壁综采放顶煤采煤方法
longwall fully mechanized overhead caving coal mining
长庆石油勘探局钻采工艺研究院
changqing petroleum exploration administration
抽采工艺
gas extraction technology
Gas drainage technology
调斜旋转回采工艺
roll steering revolving coal winning craft
反铲开采工艺
backacter mining technology
放顶煤采煤法
Longwall Mining with Sublevel Caving
回采工艺
overhead mining technology
extraction process
extracting technology
mining technology
Extraction technology
stoping technology
stoping
mining process
回采工艺优化
mining technology optimization