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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。
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dual space
dual spaces
dual specificity phosphatase
dual-specificity phosphatase
dual stack system
dual standard form
dual star
dual statement
dual-string well completion
dual-structural Internet,dual-architecture Internet
dual structure
dual subdivision
dual surface
dual system
dual system of higher education
dual system of vocational education
dual system university
dual-task paradigm
dual temperature exchange
dual-temperature exchange
dual tensor
dual tessellation
dual theorem
dual theory
dual throat vector control
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