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

单词	national prototype of the kilogram for checking
释义	national prototype of the kilogram for checking Encyclopedia 工学质量计量技术释 national prototype of the kilogram for checking1千克质量作证基准砝码为了监测1千克质量基准砝码的量值是否发生变化而专门设立的复制件。
随便看	nautical charts and publications nautical chart unit nautical ergonomics nautical health supervision nautical medicine nautical mile Nautical Navigation nautical nutrition nautical psychology nautical publications nautical publications publishing system Nautical staff health evaluation nautical star Nautical stuaff Medicial selection nautical table nautical triangle nautical twilight Nautilus Navagraha Navajos Naval Air Training Command Blue Angels Naval Air Warfare Center Aircraft Division Naval Battle of 1894 naval geography Naval Ocean Surveillance System satellite

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。