“hydrogen maser”的概念、定义、翻译、参考文献-科学参考

单词	hydrogen maser
释义	hydrogen maser Encyclopedia 工学频率标准释 hydrogen maser氢钟以氢原子基态两个超精细能级间跃迁频率为参考（频率为1.420405751786吉赫兹），通过锁定环路来锁定晶体振荡器，使晶体振荡器能够输出高稳定度和高准确度时间频率信号的原子钟。氢钟采用的工作原子为氢原子，又称氢原子频率标准（简称氢频标）、氢原子钟。 Astronomy hydrogen maser氢微波激射
随便看	the dramatic stage model and Zaju Opera figurines in the tomb of Jin Dynasty (AD 1115-1234) in Jiang Village, Anyang City the Dramatic Stage Monument in the Jade Emperor Temple of Suzhai Village, Boai County the dramatic stage of the Bixia Temple on Mount Tai the dramatic stage of the Shanshan Guild Hall in Liaocheng The Dream Factory The Dream of a Lady The Dream of Cherry The Dream of Chinese Children The Dream of Going Back to the South The Dream Of Red Mansions the Dream of Wind and Moon The Drive to Win The Drum of Yao People The Drunken Grandma Bai the dual filial piety model The Duchess of Malfi The Duckweed Literary Society The Duel the Duli Yusi Classic the durability of civil engineering materials the durability of metallic materials The Dutch Courtesan the Dutch disease the duty for true statement The Dybbuk

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