洞庭湖周边类似的蓄洪区有几百个，加固的没决口说明起作用了。蓄洪区在洞庭湖边缘处建堤形成，可防一般性洪水

来源: 21-C 于 2024-07-09 09:23:22 [旧帖] [给我悄悄话] 本文已被阅读：次

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