“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	space shuttle booster space shuttle Columbia space shuttle orbiter return space sickness space singularity spaces in mathematics space smashing to a point space solar cell space solar observation instruments space solar power station Space Solar Telescope space sound film multichannel reproduction mode space speciality skill training simulator space standardization space standardization engineering space standardizer space standard system space station space structure space sub-mm wave radio telescope space suit space suit engineer space surveillance radar space symmetry space symmetry operation

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。