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。
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。
With fractal theory, a new fractal dimensional calculation is adopted to calculate two dimensional fractal dimension of EDM surface.
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