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提出了采用比较测量时1级外径千分尺不确定的计算公式及其可测公差等级范围,从而为《光滑工件尺寸的检验使用指南》表1中给出的注①提供了理论依据。
The calculation formula and the range of measurable tolerance of 1-level micrometer with comparative measurement are put forward, which provides the theoretical basis for the note given in Table 1 of “Guidelines for the Inspection of Smooth Workpieces”.