“氢钟”的概念、定义、翻译、参考文献-科学参考

单词	氢钟
释义	氢钟 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。 Physics 原子、分子物理学 hydrogen clock氢钟 Astronomy hydrogen clock氢钟
随便看	optical luminosity function optically active substance optically denser medium optically identified object optically identified source [optically] negative crystal optically negative crystal [optically] positive crystal optically positive crystal optically rarer medium Optically Stimulated Luminescence Dating optically stimulated Luminescence dating optically stimulated luminescence dosimeter optically Stimulated Luminescence for identification of irradiated food optically stimulated luminescence radiation detector optically thick optically thick medium optically thin optically thin absorption optically thin emission optically thin medium optically thinner medium optically transparent electrode optically violently variable quasar optically violent variable quasar

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