Flatness error was obtained by minimum zone law which decided by triangle rule and cross rule.

用最小包容区域法求平面度误差。最小包容区域判别准则有三角形准则和交叉准则。

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Flatness error was obtained by minimum zone law which decided by triangle rule and cross rule.

用最小包容区域法求平面度误差。最小包容区域判别准则有三角形准则和交叉准则。

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