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dewatering excavation
释义
dewatering excavation
Encyclopedia
理学
矿床疏干防治水工作
释
dewatering excavation
疏水工程
对矿床充水水源进行的疏干或降压等确保安全采矿的工程措施。是一种矿床疏干防治水工作方法。
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positivation
positive
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