“首日封”的概念、定义、翻译、参考文献-科学参考

单词	首日封
释义	首日封 Encyclopedia 工学集邮品释 first day cover首日封在新邮票发行首日，将该套邮票的全套或单枚贴在特制信封、普通信封或纪念信封的右上角，加盖当日邮政日戳或特制的首日纪念邮戳的信封。
随便看	input symbol input tape input terminal input-to-output stability input to state stability input-to-state stability input variable input vector INQ inquest and analysis of bloodstains inquilinism Inquirer inquiring document to a parallel agency or official Inquiring of the Dao from Qiongzhou inquiry inquiry about sweating inquiry-based learning inquiry for enforcement inquiry learning environment inquiry seductively inquiry station Inquisition inquisition inquisitorial procedure INR

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。