Since natural fracture surfaces in rocks rarely display self-similar property, the estimated fractal dimension of surface roughness surffers from the scale effect.
然而，岩石断裂表面粗糙度一般不具有自相似分形性质。
With fractal theory, a new fractal dimensional calculation is adopted to calculate two dimensional fractal dimension of EDM surface.
利用分形理论，采用一种新的分形维数计算方法，得出电火花加工表面的二维分形维数。
This method not only ADAPTS to predicting the whole fractal dimension of rough surface, but also ADAPTS to estimating local fractal dimension.
这种方法比较简单而切实可行，不但适合于粗糙面整体分维的计算，更适合于局部分数维的计算。
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