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相关公差在机械工程界是一个新的概念。我国试行国标GBll83—75《表面形状和位置公差术语及定义》及GBll82—74《表面形状和位置公差代号及其注法》中的有关内容和ISO/DIS 2692《技术制图,形状和位置公差》(1973年发表)的第二部份“最大实体原理”的基本精神是一致的。即对于附有(?)符号的公差,允许将形体实际尺寸未足最大实体条件的部份补偿给形位公差。而有些国家为了扩大使用相关公差,更进一步研究将形体的实
Relevant tolerances in the mechanical engineering community is a new concept. China’s national standard GBll83-75 “surface shape and position tolerance terms and definitions” and GBll82-74 “surface shape and position tolerance code and its injection” in the content and ISO / DIS 2692 “technical drawings, shape and position tolerances” (Published in 1973) the second part of “the principle of the largest entity” is consistent with the basic spirit. That is, with tolerances attached with (?) Symbols, allow the physical part of the physical size is less than the maximum physical conditions of the part to compensate for the form tolerance. In some countries, in order to expand the use of related tolerances, further research will be physical