This is the ventilation shaft through which air leaves a mine.
这是煤矿上用来疏通空气的通风井。
In the center of each gallery is a ventilation shaft, bounded by a low railing.
在每一条廊道中心都有一口通风井，外面围着一道矮矮的栏杆。
In this paper, the relation between skip shaft and mine ventilation is discussed.
本文论述了箕斗并与矿井通风的关系。
In this paper, the relation between skip shaft and mine ventilation is discussed.
本文论述了箕斗并与矿井通风的关系。
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