The establishment of the water sump provides enough time for emergency treatment for underground mine, which can avoid the people drowned and trapped so as to ensure the safety of mines.

为井下矿山提供足够多的时间进行应急处理，避免由此引起的淹矿事故，保障了矿山安全。

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The dredging of the water sump in the underground mine is always done with the primitive manual operation for many years which would seriously influence and restrain the mine safety and production.

煤矿井下水仓清淤多年来一直采用原始的人工作业方式来完成，严重影响和制约着矿井的安全与生产。

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So, we also have in this system a capability to recirculate from the sump this water and it goes back into the containment sprays to provide continuous recirculation.

在这个系统里我们能够，从水池里再循环，水会回到容器里，喷雾，提供了连续的再循环。

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The generators are protected with a flood wall and a sump pump to remove any water that seeps in.

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