As to the profile shapes of ground collapse, they are approximately divided into vertical shaft, butterfly, funnel, ampulliform in shapes and so on.
剖面形态大致可分为竖井状、蝶状、漏斗状及坛状等。
形
As to the profile shapes of ground collapse, they are approximately divided into vertical shaft, butterfly, funnel, ampulliform in shapes and so on.
剖面形态大致可分为竖井状、蝶状、漏斗状及坛状等。
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