“形位公差” 国家标准是各行业常用的重要基础标准。近年来,“形位公差”标准陆续进行了修订,标准的内容变化较大。为实施好“形位公差”新国标,我院于1998 The “formula tolerance” national standard is an important basic standard used by various industries. In recent years, the “formula tolerance” standards have been successively revised and the contents of the standards have changed considerably. In order to implement the new national standard of “shape tolerance”, our institute was in 1998.