“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	government social combination sports system Government social media Government-Society Interaction Government-Society separetion government sport function government statistics Government's White Paper of China government system adopted by south-based goverments government theory Government to Business electronic government Government to citizen E-government Government to citizen e-government government to citizen e-government Government to Citizen electronic government Government to corporate E-government Government to Employee electronic government government to government e-government Government to Government electronic government government virtual IP private network government website government website of Beijing government website of Dalian government website of Guangzhou government website of Ningbo government website of Qingdao

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。