“national time scale primary standard”的概念、定义、翻译、参考文献-科学参考

单词	national time scale primary standard
释义	national time scale primary standard Encyclopedia 工学时标释 national time scale primary standard原子时标国家计量基准 1983年经国家质量监督检验检疫总局批准，由中国计量科学研究院（NIM）国家时间频率计量中心建立和保持的原子时标UTC（NIM）。是统一全国时间频率量值的最高依据。
随便看	problem handling system Problem novels problem of a hundred chickens problem of allocation problem of brachistochrone problem of circumference in equal parts problem of construction with ruler and compass problem of contact problem of Copenhagen problem of determining the order problem of development of disturbing function problem of distribution of a cake problem of divisors problem of doubling a cube problem of duplication of a cube problem of geometric construction problem of honeycomb problem of impossible construction problem of large deviation problem of lotus flower problem of many bodies problem of minimum time problem of moduli problem of moments problem of n bodies

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