“frequency and time standard”的概念、定义、翻译、参考文献-科学参考

单词	frequency and time standard
释义	frequency and time standard 频率及计时间标准
随便看	cleanliness clean mining clean negotiable bill of lading clean off the balance outstanding clean oil clean on board bill of lading cleanout clean out cleanout auger cleanout bit cleanout cock cleanout door clean-out door clean-out hole cleanout jet auger clean-out opening clean-out plug cleanout plug cleanout port clean payment credit clean payment letter of credit clean pig clean plastic (clean polyester) clean proof clean reactivity

科学参考收录了1248194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。