Failure of double layer dyke foundation by seepage first begins from tenacious clay covering.
双层堤基的渗透破坏首先是从黏性土盖层开始的.
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Failure of double layer dyke foundation by seepage first begins from tenacious clay covering.
双层堤基的渗透破坏首先是从黏性土盖层开始的.
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