对坐标镗床光学系统常见的故障进行分析，并介绍相应的简便维修方法。
In this paper, the common fault of optical system in the coordinate_ boring machine is analyzed. The corresponding methods of maintenance is given.
对坐标镗床光学系统常见的故障进行分析，并介绍相应的简便维修方法。
In this paper, the common fault of optical system in the coordinate_ boring machine is analyzed. The corresponding methods of maintenance is given.
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