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 GB/T 1800.1-2009  
Geometrical product specifications (GPS) - Limits and fits - Part 1: Bases of tolerances, deviations and fits

产品几何技术规范(GPS) 极限与配合 第1部分:公差、偏差和配合的基础
 GB/T 6379.6-2009  
Accuracy(trueness and precision) of measurement methods and results - Part 6: Use in practice of accuracy values

测量方法与结果的准确度(正确度与精密度) 第6部分:准确度值的实际应用
 GB/T 23284-2009  
Micrographics - Image mark (blip) used with 16mm and 35mm roll microfilm

缩微摄影技术 16mm和35mm卷式缩微胶片使用的影像标记(光点)

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