digging face造句

例句与造句

1. The contra - rotating axial local fan can be used extensively in the large digging face and long distance ventilation in the mine
   该通风机可广泛应用于矿井大断面、长距离掘进巷道和具有有害气体及需要大风量的工作场所通风。
2. It's difficult to find digging face in a sentence. 用digging face造句挺难的