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测量机床导轨平直度要求有精度很高的标准试棒或者标准导轨。当测量的对象比较大时(比如要测量大型机床的导轨或巨型零件的平直度)时,要制造出相应的大型标准试棒或导轨是很困难的,也很不经济。下面介绍一
Measuring machine tool flatness requirements of the rail with high precision standard test bar or standard rail. When measuring the object is relatively large (such as to measure the straightness of rails or large parts of large machine tools), to produce the corresponding large standard test bar or rail is very difficult and not economical. Introduced below one