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公差原则本标准是GB4249－84的修订本。在技术内容上，与IS08O15：1985技术制图基本的公差原则）等效。在不影响国际交流的前提下，对IS08015进行了增补，以反映ISO标准的最新动态。本标准与GB4249－84的主要不同之处是：将原标准称为“原则”的内容，除独立原则外，皆改称“要
Tolerance Principle This standard is a revision of GB4249-84. In terms of technical content, it is equivalent to the basic tolerance principle of IS08O15:1985 technical drawing. On the premise of not affecting international exchanges, IS08015 has been supplemented to reflect the latest developments in the ISO standard. The main difference between this standard and GB4249-84 is that the original standard is called “principle”. In addition to the principle of independence, it is renamed “to be