It is found in the survey that the sliding surface has a three segments form, including sliding surface of forward edge, drawing open surface of back edge and shearing surface of inter part.
考察中发现，滑动面具有前缘滑移面、后缘拉裂面和中间剪断面的三段式形态。
It is found in the survey that the sliding surface has a three segments form, including sliding surface of forward edge, drawing open surface of back edge and shearing surface of inter part.
考察中发现，滑动面具有前缘滑移面、后缘拉裂面和中间剪断面的三段式形态。
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