“当且仅当”的概念、定义、翻译、参考文献-科学参考

单词	当且仅当
释义	当且仅当 Mathematics exactly when当且仅当 if and only if当且仅当^† iff当且仅当^† just if当且仅当 then and only then当且仅当 when and only when当且仅当
随便看	Reeb component Reeb foliation Reeb stability theorem reed reed comb reed grass Reed: Insurgent Mexico Reed International REE distribution pattern Re-edited Mandarin Dictionary re-edition book Reed-Muller code Reed Painter reed-pipe reed-pipe dance reed rhizome Reed-Soloman code Reed-Solomon code re-education through labor Reed–Frost model reef fishing ground reef knot Ree group Reeh Reeh-Schlieder theorem

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。