“certificate of necessity”的概念、定义、翻译、参考文献-科学参考

单词	certificate of necessity
释义	certificate of necessity 需要证书
随便看	medium-level work medium lift lock medium lift pump medium line medium-lived medium lived medium lived seed medium loader medium loading district medium loam medium long shot medium lorry medium-loss fiber medium-lot producer medium maintenance medium maintenance group medium manganese steel medium maturing variety medium (media): recording medium medium ( mediums or media) medium mesh medium method medium-moisture silage medium molecular dextran medium molecular substance

科学参考收录了1248194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。