equivalent angle of internal friction
apparent angle of internal friction 表观内摩擦角 equivalent angle of internal friction 等效内摩擦角 effective angle of internal friction 有效内摩擦角 ; 抗剪强度有效内摩擦角 ..
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the equative angle of internal friction
等效内摩擦角 the equative angle of internal friction 信息施工法 construction method from information ..
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