“邮票发行”的概念、定义、翻译、参考文献-科学参考

单词	邮票发行
释义	邮票发行 Encyclopedia 工学邮政服务释 stamp issuance邮票发行邮政主管部门代表国家对邮票的选题、设计、印制、发运和销售使用进行管理的全过程。狭义的概念仅指邮政企业向社会发售邮票的行为。既属于邮政业务范畴，也受国家邮政管理部门的行政管理。
随便看	secondary characteristic classes secondary chemical defense secondary circle secondary circuit of electric arc furnace for steelmaking secondary clock secondary cohomology operation secondary coil secondary colony secondary color secondary colour Secondary Colour of Jade Artifact Secondary Colour of Jade Material secondary component secondary composition secondary conditioning secondary consolidation secondary constriction secondary consumer secondary cooling of continuous casting secondary copper secondary cortex secondary cosmic radiation secondary cosmic ray secondary cosmic rays secondary crater

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。