“necessary”概念、定义、翻译-科学时代

单词	necessary
释义	哲学词汇手册 necessary 必然的
随便看	knocked-down（KD） knocked-on atom knocked-on-electron knock for knock agreement knock-for-knock agreement knock-for-knock agreement knock indicator knocking knocking knocking knocking knocking knocking behavior knocking-bucker knocking combustion knocking combustion knocking combustion knocking copy knocking gear knocking out knocking test knocking up knock-inhibiting additive knock intensity knockmeter

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。