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由民航西南空管局和四川联合大学联合举办的“民航西南地区通信导航系统干部科技管理培训班”第一期于4月1日在四川
Held jointly by Civil Aviation Southwest Air Traffic Control and Sichuan Union University “civil aviation navigation and communication system in southern China cadre science and technology management training course ” the first period on April 1 in Sichuan