July 18th, Changsha, teachers and students of Changsha Aeronautical Vocational and Technical College are carrying two drones, which are provided by a Chinese air force factory. (CNS photo/Yang Huafeng)
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July 18th, Changsha, teachers and students of Changsha Aeronautical Vocational and Technical College are carrying two drones, which are provided by a Chinese air force factory. (CNS photo/Yang Huafeng)
