Li Jie (R), teacher of Shandong University of Aeronautics, introduces the principles of drones to students at a laboratory in Binzhou, east China's Shandong Province, Oct. 9, 2024. Binzhou City of Shandong Province has developed the low-altitude economy. The city leverages the layout of several industrial parks, along with the talent cultivation and R&D advantages of Shandong University of Aeronautics. (Xinhua/Yang Shiyao)
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