然后将重复曲率中心测试并与第一测试进行比较以确保反射镜保持对准。

Then the Center of Curvature test will be repeated and compared to the first test to ensure that the mirrors remain aligned.

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该方法利用精密线纹尺和读数显微镜对数控机床的定位精度和重复定位精度进行检验。

In this method, the positioning accuracy and repeated positioning accuracy are tested using the precision linear scale and the reading microscope.

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办法是：打印井字，重复打印10遍，用40倍放大镜看，假如重合，设备合格。

The method is: print the word, repeat print 10 times, with a magnification of 40 times to see, if coincidence, equipment qualified.

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