“national measurement standard”的概念、定义、翻译、参考文献-科学参考

单词	national measurement standard
释义	national measurement standard Encyclopedia 工学测量标准释 national measurement standard国家测量标准经国家权威机构承认，在一个国家或经济体内作为同类量的其他测量标准定值依据的测量标准。简称国家标准（national standard）。
随便看	feedback loop feedback mechanism feedback network feedback neural network Feedback prediction method feedback reflector feedback reflector, FBR feedback regulation of allosteric enzyme feedback shift register feedback signal feedback stabilization feedback suppression feedback synthesis feedback system feed biological contamination feed box of machine tool feed chute feed constituent feed control feed conversion rate feed conversion rate for egg-type poultry feed defocusing feed efficiency feed enzyme preparation feeder

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