冒落线;
The removal speed of the fully-mechanized coal face with topped caving ( FCFTC) can be increased by pre-excavating finishing cut on terminal mining line.
在停采线位置预掘收作眼,可大幅度提高综放工作面搬迁速度。
Coal spontaneous combustion prevention and control technology for coal mining terminal line of overlong fully mechanized top coal caving mining face
超长综放工作面终采线处煤炭自燃防治技术
There is a certain angle between caving line and coal seam strike.
垮落线与煤层走向是一定角度。
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