“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	Poncelet poncelet Poncelet closure theorem Poncelet coaxal theorem Poncelet continuity principle Poncelet crater Poncelet porism Poncelet-Steiner construction Poncelet-Steiner theorem Poncelet theorem Poncelet transform Poncelet transverse pond pond aquaculture pond aquaculture composite constructed wetland pond aquaculture environment pond aquaculture facilities pond aquaculture machinery pond bio-floating bed pond community pond culture of crustaceans pond culture of fish pond culture of sea cucumber pond ecological aquaculture pond ecosystem

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