“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 humanity paradigm in library science The Human Place in the Cosmos The Human Problem the human settlements in Yongzhou Region The Human World the Humble Administrator’s Garden The Hundred Languages of Children The Hunger Games the hungry sing of food and the labor sing of work The Hunters The Hunters in the Snow The Hunting of the Snark The Hurt Locker The Husband The H.W. Wilson Company the hydrodynamic testing facility the hydrogen power station the hydrogen storage the hydrogen transport The Hypercycle:A Principal of Natural Self-Organization Theia Theia Mons the IAU2009 system of astronomical constants The Icarus Girl The Iceman Cometh

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