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PREVENTION SYSTEM OF EMERGENCY BY CONNECTION
PREVENTION SYSTEM OF EMERGENCY BY CONNECTION
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机译:通过连接预防突发事件
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摘要
Prevent basement flooding of coastal cities and low-lying areas; It is to prevent casualties and personal national disaster.; The invention can be extended to various lengths of underground ventilation windows to the connecting plate, and; Preserving the functionality of existing hwangichang and by only detachable in case of emergency is closed preventing flooding-connecting window for preventing basement flooding
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