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.
論述了新國家標準GB/2624-93流量測量節流裝置設計計算方法。
The differences between the measurement of coke shatter strength in the current National Standard and that in the International Standard have been studied.
研究了現行國標中焦炭落下強度測定方法與國際標準的差異問題。
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.
本文介紹了世界輻射基準的傳遞和我國輻射標準的溯源、維持、傳遞及其穩定性。