“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	tropical whiteweed tropical year tropical zone tropical zone in China tropic movement Tropic of Cancer Tropic of Capricorn tropics tropinone tropism tropistic movement tropocollagen tropoelastin tropolone tropomyosin tropone troponin tropopause tropopause fold tropopause inversion layer troposcatter troposphere troposphere chemistry troposphere delay correction tropospheric

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。