gateway surrounding rocks  巷道围岩

Broken Surrounding Rocks  破碎围岩; 时间有色佩特里网

soft and broken surrounding rocks  松软破碎围岩

coal mining with raw waste backfilling method  矸石直接充填采煤方法

coal mining with water pressure  带压开采

coal mining with water-containing  保水采煤

coal mining with writer conservation  保水采煤

Dynamic mining  动态挖掘

dynamic mining algorithm  动态挖掘算法

full-mechanized caving mining with large mining he  大采高综放

Full-mechanized Caving Mining with Large Mining Height  大采高综放; 大采高综放开采

fully mechanized coal mining with caving of roof coal  综合开采

fully mechanized mining with great mining height  大采高综采

fully mechanized mining with sublevel caving  综放工作面

FULLY MECHANIZED MINING WITH TOP COAL CAVING  综放端面; 综放开采

Fully-mechanized Mining with Roof Caving  综采放顶煤

FULLY-MECHANIZED MINING WITH SUBLEVEL CAVING  综采放顶煤

fully-mechanized mining with top coal caving  综采放顶煤

integrate prospecting with mining  探采结合