If explosives are used, vibrations will cause the roof of the mine to collapse.Rescue
workers are therefore drilling a hole on the north side of the mine. They intend to bring the men up in a special capsule. If there had not been a hard layer of rock beneath the soil.

19'

译文：
如果用**爆破,震动会引起矿顶塌落。因此,营救人员在矿井的北侧钻了一个洞。他们准备用一种特质的容器把这六个人救上来，如果不是土壤下面有一层坚硬的岩石。