This paper uses the dispersancy index K stand for the dispersancy of sliding surface of block.

用分散性指标K表示块体滑动面的分散性,由此分析滑动摩擦圆的出现概率,并表示在结构面赤平投影图上.

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Parameter characterizes the dispersancy assigned to the measured value reasonably and related to the measuring result.

表征合理地赋予被测量之值的分散性,与测量结果相联系的参数.

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