“primary standard machine of vickers hardness”的概念、定义、翻译、参考文献-科学参考

单词	primary standard machine of vickers hardness
释义	primary standard machine of vickers hardness Encyclopedia 工学硬度计量技术释 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。
随便看	direct stationary direct steaming machine for cocoon direct subgroup direct subsidies to grain farmers direct subsidy for grain production direct succession direct successor direct sum direct sum decomposition direct sum group direct summand direct sum module direct sum of groups direct sum of ideals direct sum of modules direct sum of objects direct sum of representations direct sum of rings direct sum of sets direct sum of sheaves direct sum of subspaces direct sum representation direct-sum set direct-sum space direct sunlight

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