“metrology in the field of time and frequency”的概念、定义、翻译、参考文献-科学参考

单词	metrology in the field of time and frequency
释义	metrology in the field of time and frequency Encyclopedia 工学时间频率计量释 metrology in the field of time and frequency时间频率计量利用秒作为基本单位的测量及其应用的科学。是实现时间频率相关量单位统一、量值准确可靠的活动，计量学的分支之一。
随便看	secondary coil secondary colony secondary color secondary colour Secondary Colour of Jade Artifact Secondary Colour of Jade Material secondary component secondary composition secondary conditioning secondary consolidation secondary constriction secondary consumer secondary cooling of continuous casting secondary copper secondary cortex secondary cosmic radiation secondary cosmic ray secondary cosmic rays secondary crater secondary crystallization secondary culture secondary data collection secondary development of land secondary diagonal secondary diffraction

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。