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水闸门
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水闸门
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water door
水闸门
为避免因停电及排水设备发生故障或因较大突水造成淹井事故,而在通往水害威胁地区巷道的总汇合处、井底车场、井下水泵房等巷道内设置的用于拦截水流的防水设施。
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government relations
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Government's White Paper of China
government system adopted by south-based goverments
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更新时间:2026/4/2 17:05:50