national measurement standard

基本解释

The design and calculation of throttle device in flow measurement stated in new national standard GB/ T2624-93 are described.
论述了新国家标准GB/2624-93流量测量节流装置设计计算方法。
The differences between the measurement of coke shatter strength in the current National Standard and that in the International Standard have been studied.
研究了现行国标中焦炭落下强度测定方法与国际标准的差异问题。
It mainly focuses on traceability, maintain, quantity transfer and stability of the National and working standard for the measurement direct and global solar radiation in China.
本文介绍了世界辐射基准的传递和我国辐射标准的溯源、维持、传递及其稳定性。