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。
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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