Can be seen surrounding rock structure of the typical pattern of damage to the roof and floor of bending damage and a broken pillar along the main damage to the weak side slip.
可见采场围岩结构的典型破坏模式以顶底板的弯曲折断破坏和矿柱沿弱面滑移破坏为主。
A large marble pillar lay on the ground, which, in falling, had been broken into three pieces.
那儿有一根巨大的大理石柱。它已经倒在地上，并且跌成了三段。
A large marble pillar lay on the ground, which, in falling, had been broken into three pieces.
那儿有一根巨大的大理石柱。它已经倒在地上，并且跌成了三段。
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