“primary standard of laser small angle”的概念、定义、翻译、参考文献-科学参考

单词	primary standard of laser small angle
释义	primary standard of laser small angle Encyclopedia 工学角度计量技术释 primary standard of laser small angle激光小角度计量基准用于±1°范围内小角度量值的校准和溯源，复现和保存小角度量值，具有最高准确度，统一全国小角度量值的最高依据的国家计量基准。
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