The safety inspector's report noted poor ventilation in the lower drift of the mine.

安全檢查員的報告指出，礦坑下層平巷的通風不良。

Please email the contractor the updated budget for extending the main drift by 200 meters.

請將主平巷延長兩百公尺的最新預算寄電子郵件給承包商。

During the investor tour, visitors rode a small train through the drift to the ore face.

在投資人參訪行程中，訪客搭乘小火車穿過平巷抵達礦石開採面。