圖們江上遊水流湍急，中下遊河段蜿蜒曲折，很多彎道角度甚至達到了60°以上，河段短而急促。

來源: thore 於 2026-03-17 13:08:20 [舊帖] [給我悄悄話] 本文已被閱讀：次

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