防洪墙;防洪石堤
It is only under the condition that the surface is stable on the whole that the height of the flood wall in Shanghai proper depends primarily on high tide level originated from the weather and the tempest.
祗有在地面基本稳定的条件下,上海市区防汛墙的高度才主要取决于气象、风暴潮引起的高潮位。
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