The escapeshaft 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。
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The drilling of an escapeshaft 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。
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Not only is the escapeshaft 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.