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分析了在单坐标加工方法中影响等距型面加工精度的因素，得出了在等距型面形成过程中，椭圆短轴的误差影响最大，应规定较严的公差或者采用补偿环节，以减少加工过程中的误差．
The factors influencing the machining accuracy of the equidistant profile are analyzed in the single coordinate machining method. It is concluded that the error of the ellipse short axis has the greatest influence on the equidistant profile formation. Tighter tolerances or compensation steps should be provided. Reduce the error in the process.