Geometrical product specifications (GPS)—General concepts—Part 3:Toleranced features
全国产品几何技术规范标准化技术委员会(SAC/TC 240)
GB/T 24637的本部分给出了工件提取要素（组成或导出)的缺省定义，它们在GPS规范中都是被测要素（尺寸、几何或表面结构规范)。本部分定义了用于定义GPS特征的缺省几何要素。
本部分适用于产品几何技术规范和检验中工件的提取要素。
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