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primary standard machine of vickers hardness
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primary standard machine of vickers hardness
Encyclopedia
工学
硬度计量技术
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primary standard machine of vickers hardness
维氏硬度基准装置
用来复现和保存维氏硬度量值单位,用作统一中国维氏硬度值的最高依据的装置。由中国计量行政部门批准建立。
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