1)long face,长壁工祖2)long face place,长壁工祖3)longwall,长壁工祖4)longwall face,长壁工祖5)shearer longwall face,长壁工祖6)longwall face development,长壁工祖升采7)steep longwall face,陡的长壁工祖8)single unit face,一个单位的长壁工祖9)longwall,长壁10)long well,长壁
用法和例句
Different from the delaying slope coal seam, there is difficultly supporting particular complexity in the T-junctions of the fully mechanized top coal caving longwall face in pitched thick seams because of existence of triangle top coal in tail T-junction and triangle floor in head T-junction.
