“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	surface of ceramics surface of class r surface of coincidence surface of congruence surface of constant breadth surface of constant curvature surface of constant geopotential surface of constant phase surface of constant width surface of contact surface of degeneration of type surface of degree p surface of discontinuity surface of equal distances surface of finite type surface of general type surface of genus g surface of genus zero surface of intersection surface of least area surface of Liouville type surface of materials surface of negative curvature surface of order n Surface of phase change heat transfer

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。