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Drones help facilitate Spring Festival travel rush in Chengdu

chinadaily.com.cn | Updated: 2019-01-23 13:25
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Police officers test a drone along Chengwenqiong Highway in Chengdu city, Sichuan province on Jan 21, 2019. Local police are using three drones, along with two other high-tech flying machines, to monitor traffic during the Spring Festival travel rush or "Chunyun". [Photo/IC]
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