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本文提出了一种评定厚板零件孔组位置度误差的新方法，并建立了相应的数学模型。此方法不仅可以用最小二乘法和最小区域法计算出厚板零件孔组位置度误差值，而且还可以得到表征被测孔实际轴线形貌的特征参数。
In this paper, a new method to evaluate the position error of the holes in the plate parts is proposed and the corresponding mathematical model is established. This method not only can calculate the position error value of hole group of plate part by least square method and minimum area method, but also can get the characteristic parameters that characterize the actual axis shape of measured hole.