“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	the bronze chariots unearthed from emperor Qinshihuang’s mausoleum The Bronze Horseman The Bronze Man Acupont Classic of Acupuncture and Moxibustion Figure The Bronze Mirror the bronze mirror of Han dynasty the bronze mirror of Sui dynasty, Tang dynasty and the Five dynasties The Bronze Teeth the bronze vessel with a human face relief the bronze ware of Qin and Han dynasties the bronze ware of Xia, Shang and Western Zhou dynasties The Brothers Karamazov The Buchanan Report the Budapest Declaration on World Heritage the budget of basic healthy insurance fund for urban employee The Buffalo Boy the buffering hypothesis The builders of Red Flag Canal the building of satellite towns The Bulletin the bund tunnel in Shanghai the burden of proof in labor dispute arbitration The Bureau for Compilation of Law The Bureau of Fisheries and Fishery Administration,the Ministry of Agriculture The Bureau of Fishery Ship Inspection, Ministry of Agriculture The Burghers of Calais

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