“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	Anthropological Type of Ancient Northwest of China Anthropological Type of Ancient South China anthropologic documentary anthropology Anthropology from a Pragmatic Point of View Anthropology Museum of Guangxi Anthropology Museum of Hulun Buir Anthropology Museum of Oroqen Autonomous Banner Anthropology of Art anthropology of Christianity anthropology of education Anthropology of Sport anthropology of tourism anthropometric measurement anthropometry anthropomorphic load anthropomorphic polygon anthropomorphism Anthro-silting materials anthrosol in China Anthrosols anthrostagnic epipedon anthrostagnic moisture regime Anthroturbic layer anthurium bacterial blight

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