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

单词	primary hardness standard machine
释义	primary hardness standard machine Encyclopedia 工学[标准仪器设备]释 primary hardness standard machine基准硬度机复现和保存硬度量值单位，用作统一国家硬度量值的最高依据的硬度机。
随便看	refrigeration standard after forging refrigeration storage refrigeration system accessories refrigeration unit performance evaluation refrigerator refrigerator ship refrigerator with compressed gas refringence refringency refueling refueling and defueling system refueling cycle refueling period refueling platform refueling pod refuge chamber refugee Refugees refuge floor(room) refuge signal refuge strategy refusal refusal rate refusal to deal refuse collecter

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