一、参考译文首先用铲运机铲除厚度为0.2～1.5米的表土,并直接用于复田,然后对21米厚的覆盖层钻眼爆破,再用一台吊斗铲将碎石铲向一旁。这台吊斗铲有一个容积为61米~3的铲斗和一个87米的悬臂。这条开采带的长度约为7公里,B煤层的暴露宽度达42米以上,对B煤层进行钻眼爆破后,便由电铲将煤装入180吨载重汽车,由汽车拉出采 First, the first translation of the scraper for the removal of surface soil thickness of 0.2 to 1.5 meters, and directly used in the field, and then cover the 21 m thick drilling blasting, and then use a bucket shovel shovel gravel One side. This dragline has a bucket of 61m3 and a 87m cantilever. This mining belt is about 7 kilometers in length and the B coal seam has an exposed width of 42 meters or more. After drilling and blasting of the B seam, coal is loaded into a 180-ton truck by a power shovel and pulled out by a car