“national prototype of the kilogram”的概念、定义、翻译、参考文献-科学参考

单词	national prototype of the kilogram
释义	national prototype of the kilogram Encyclopedia 工学质量计量技术释 national prototype of the kilogram1千克质量基准砝码中国在1965年从国际计量局得到砝码器号是60号的国家千克原器。
随便看	central figure Central Film Service Central Film Studio Central Five and Seven Arts Academy central flow surface central force central force field central-force field central fringe central function Central General de Trabajadores central glial cells central government funds for poverty alleviation central government schooling in Chinese ancient society central green space of housing cluster Central Guizhou urban agglomeration Central Health Laboratory Office central heating heat load central heating water treatment Central Hebei Area Pictorial Central Hidroeléctrica Francisco Morazán central hot water supply system central hyperplane arrangement central idempotent central idempotent element

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。