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1·Accuracy of measurement of face runout is enhanced effectually by use of least square method of compressing rectangle fitting edge of image and transforming of DFT.

用压缩矩形的最小二乘法拟合工件端面图像的边缘以及用DFT变换对工件端面的跳动量进行测量，使端面跳动测量的准确性得到了很大的提高。

2·The term permissible running deviation comprises all tolerances which affect bearing running accuracy: radial runout, side face runout relative to the raceway and runout relative to the bore.

宽度上的变化对于最大和最小尺寸的套圈是不同的。列表里允许的运行偏差包括了影响轴承运行精度的所有公差类型。