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.
但这期间确保安全渡汛是做好其它各项工作的前提条件，本文结合多年的实践经验，对施工船舶安全渡汛提出以下几点看法。
And, during this period, it is the prerequisite of finishing else work to ensure safety in flood period. Combining practical experience of many years, this paper proposes several ideas.
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