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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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Main Building of Tianjin West Station
maincenter
main chain
main chain liquid crystalline polymer
main-chain liquid crystalline polymer
main check line comparison
Main Chinese chess scores
main circuit
main circuit breaker of electric locomotive
main class
main combustion chamber
maincontact
main control register
main control valve
main cotton producing areas
main crop breeding
main cultivar
Main Currents in Sociological Thought
Main-Danube Canal
main device
main diagonal
main diagonal of a square matrix
main diagonal sum
Main Directorate for Literature and Publishing
main distribution channels of books
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