“federal specifications”概念、定义、翻译-科学时代

单词	federal specifications
释义	图书馆、情报与文献学词汇手册 federal specifications （美国）联邦规格说明书
随便看	concentration concentration concentration concentration concentration concentration concentration concentration concentration concentration and centralization concentration basin concentration boundary layer concentration camp concentration camp concentration camp concentration campaign concentration cell concentration cell concentration cell concentration cell corrosion concentration criterion concentration distribution concentration distribution concentration effect concentration effect

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。