“秒长国家计量基准”的概念、定义、翻译、参考文献-科学参考

单词	秒长国家计量基准
释义	秒长国家计量基准 Encyclopedia 工学频率标准释 national primary frequency standard秒长国家计量基准直接复现秒定义的实验装置。输出的标准频率具有最高计量学特性，作为统一全国秒长量值（频率量值）最高依据的计量器具，全国只有一套。
随便看	fixed-parameter tractability fixed part fixed path fixed penetrant test device fixed-phase wave fixed plane fixed platform truck fixed point fixed-point arithmetic fixed-point blackbody radiation source fixed-point calculation fixed-point computer fixed point detection fixed-point device fixed-point formula fixed-point free fixed point index fixed-point index fixed-point induction fixed point iteration method fixed-point iteration method fixed point map fixed point method fixed-point method fixed-point method of Leray and Schauder

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。