“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	NOT-circuit not convenient court principle note notebook notebook computer Notebooks note file of the Tang Dynasty note market note of dwelling in mountain Note on Viewing an Oil Painting in Paris notes Notes and Commentary on Ancient Texts about Meridians Notes and Comments on the Vairochana Sutra notes financing notes for the title Notes from Longchuan Notes from the Jieyin Studio Notes from Three Government Departments Notes from Underground notes of collation Notes of Daguan Period Notes of Dunhuang Fu Notes of History Notes of Ket Drum Notes of Laoxue'an Studio

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