长壁综采放顶煤采煤方法
longwall fully mechanized overhead caving coal mining
大采高综采放顶煤技术
fully mechanized high cutting and top coal caving mining technology
大倾角综采放顶煤
the steep-grade angle and top coal mining
短长壁综采放顶煤
shorter long-wall full-mechanized caving mining
炮采放顶煤
blasting coal caving face by blasting
artillery mining coal
caving-working-face
炮采放顶煤工作面
blasting coal face with sublevel caving
轻型综采放顶煤
light supported fully mechanized caving
Top-coal caving with light support
巷柱－综采放顶煤
combin gateway and pillar with fully mechanized to
综采放顶煤
mechanized top-coal caving
fully mechanized caving
fully mechanized top coal caving mining
fully-mechanized mining with top coal caving
fully-mechanized mining with sublevel caving
fully mechanized sublevel caving mining
fully mechanized caving mining
Fully-mechanized Mining with Roof Caving
Fully-mechanized Top-coal Caving Mining
Long-wall Top Coal Caving
fully-mechanized top coal caving
Fully-mechanized Coal Caving
top-coal caving mining
sub-level caving
fully mechanized roof-caving face
fully-mechanized caving method
fully mechanized coal drawing
sub-level caving mining
Full-mechanized Caving Mining
fully mechanized top cawing mining
Fully-caving
综采放顶煤工作面
fully mechanized top coal caving face
顶煤放出率
top coals′ recovery ratio
放顶煤
top coal caving
caving top coal
top-coal drawing
Top-coal Caving
top-coal caving mining
blasting down coal
caving
Sublevel caving
carry out the head coal
coal caving
caving coal
coal caving mining
longwall face with sublevel caving
放顶煤综采
fully mechanized caving coal