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critical levee section
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critical levee section
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critical levee section
险工
依附于大堤之上,防止堤防冲决的险要防洪工程。广义的险工是指在设计运用条件下可能发生危险的工程区段,习惯上称为险点或险段。
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更新时间:2026/1/5 15:25:47