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15:52, 24-Oct-2018
Fire-spewing drones are employed to get rid of unwanted objects stuck on electric power lines in southern China. Drone cleaners are safer and more effective instead of human work.
Updated
14:47, 27-Oct-2018
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Copyright © 2018 CGTN. Beijing ICP prepared NO.16065310-3
Copyright © 2018 CGTN. Beijing ICP prepared NO.16065310-3