例句與造句

1. The contra - rotating axial local fan can be used extensively in the large digging face and long distance ventilation in the mine
   該通風(fēng)機(jī)可廣泛應(yīng)用于礦井大斷面、長(zhǎng)距離掘進(jìn)巷道和具有有害氣體及需要大風(fēng)量的工作場(chǎng)所通風(fēng)。
2. It's difficult to find digging face in a sentence. 用digging face造句挺難的