“国家化学计量基准”的概念、定义、翻译、参考文献-科学参考

单词	国家化学计量基准
释义	国家化学计量基准 Encyclopedia 工学〔化学计量基本概念〕释 national primary measurement standard in chemistry国家化学计量基准由一套特定的测量装置、参考测量程序等组成，用于在化学测量领域内定义、实现、保存、复现测量单位或一个、多个、一定范围的量值，并经国家鉴定、批准作为统一全国量值的最高依据。
随便看	opera carvings of the Foshan Ancestral Temple opera chest of Xiawa Troupe in Aohan Banner opera compere opera costume for attendants and soldiers opera costume for eunuchs opera costume of a military officer opera costumes and paraphernalia opera costumes of Chunlin Troupe of Shangyuan Village, Xiushui County opera costumes of the Qing Dynasty preserved in the Youth Peking Opera Troupe of Tianjin City opera deities Opera Department of Shanghai Theatre National Salvation Association opera ending opera face paintings of Ming and Qing dynasties collected in the Zhuiyu Chamber of Mei clan Opera Facial Makeups for Clowns opera facial mask opera facial paintings of the Qing court opera feature film opera film Opera film director's technique course Opera Film theory opera frescoes at Peking Jingzhong Assosiation opera frescoes unearthed at Yuan tomb of XilizhuangVillage, Yuncheng City opera guild opera house opera house in Guangdong Guild Hall(Tian Jin)

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。