N a shaft in a mine through which miners can escape if the regular shaft is blocked 安全竖井
The escape shaft is about 622 meters deep, and it takes almost an hour for each rescue.
救援被困工人的竖井深度大约622米，每救一个人需要1小时左右。
The drilling of an escape shaft to rescue 33 miners in Chile could begin as soon as Sunday.
救援智利33名被困矿工的逃生井的开凿工作将于周日展开。
Not only is the escape shaft ready, but the special capsule that was sent down to rescue the men has been tested to a depth of 610 metres, and the Mining Minister Laurence Golborne says all went well.
不仅营救巷道做好了准备，用于搭救被困矿工的特制救生舱也在地下610米的深度进行了测试。 矿务部长戈尔本(Laurence Golborne)表示一切工作进展顺利。
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