“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	repair and maintenance of heat-supply network repairase repair-capability repair complex coefficient repair cycle repair drafts of animation repair enzyme repairing for structural engineering repairing materials for civil engineering repairing mortar repair method based on inspection repair of cylinder cracks repair of deformed surface of turbine cylinder flange repair polymerase repair project of Zhaozhou Bridge repair rate repair system Repair Technology of Chinese Ancient Buildings repair the oil well casing repair the oil well casing by bulged repair the oil well casing by casing docking repair the oil well casing by explosion repair the oil well casing by liner repair the oil well casing by repairing and linking repair the oil well casing by strengthening the body resistance

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。