矿坑涌水直接危及地下矿山矿井安全，保障矿山安全渡汛是地下矿山的重大课题。
The gush-out water in the mineral pit endangers the underground mine safety directly.
矿井提升机是矿山生产最重要的设备。
矿井提升机是矿山的大型固定设备之一。
由于不同矿山的地质条件等因素变化很大，矿井水的杂质成分与含量也有很大差异。
The components of the coal mine water is various obviously according the mine geologic condition.
矿井突水一直是困扰矿山企业安全生产的突出问题。
Water inrush has always been a serious problem in safety work of mine enterprise.
矿井突水一直是困扰矿山企业安全生产的突出问题。
Water inrush has always been a serious problem in safety work of mine enterprise.
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