“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	model potential molecular dynamics model-potential molecular dynamics model predictive control model reduction model reduction method model refactoring model reference adaptive control model reference adaptive control systems model reference adaptive system Model Requirements for the Management of Electronic Records model sampling model selection model set model set parameters model set size model set types Models for Life models for multiphase turbulent flows model simplification model simplification method models of agricultural policy making models of communication models of computation models of democracy models of policy evaluation

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。