... 英国国家物理实验室；印度国家物理研究所 National Physical Laboratory (NPL) 国家原级标准 national primary standard 国家参考群 national reference group ...
基于10个网页-相关网页
National Primary Drinking Water-Standard 国家主要饮用水标准
national primary kilogram standard [计量] 国家千克基准器
national primary ambient quality standard 国家一级环境空气技师标准
The national primary standard of combustion heat was completely improved.
对国家燃烧热基准进行了全面改造。
This paper will introduce the improvement of national primary standard for low pressure, middle pressure and high pressure, and the development of dynamic pressure calibration technology in China.
本文介绍了我国微压、中压和高压方面国家基准的改进和我国动态压力校淮技术的进展情况。
National primary energy production reached 1.34 billion tons of standard coal.
一级能源生产达到13.4亿吨标准煤。
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