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通过结构函数分析法研究了不同采样间距及不同取样长度时金属研磨及刨削加工表面轮廓线的分形特性，分析了采样间距及取样长度对粗糙表面轮廓线分形参数Ｄ及Ｇ值的影响，确定了金属加工表面轮廓线分形参数的尺度独立性。
The fractal characteristics of metal grinding and planing surface contours at different sampling intervals and different sampling lengths were studied by structural function analysis. The effects of sampling interval and sampling length on the fractal parameters D and G of the rough surface contour were analyzed. The scale independence of the fractal parameters of metal processing surface contour.