Instructors check an agricultural drone before demonstration at a tea garden in Baicha Village of Yundong Town, Duyun City of Qiannan Bouyei and Miao Autonomous Prefecture, southwest China's Guizhou Province, April 17, 2026. Trainees on an agricultural drone application training course in Guizhou Province took part in practical exercises in Duyun City on Friday to improve their skills in operating crop protection drones. (Xinhua/Yang Wenbin)

An aerial drone photo taken on April 17, 2026 shows a drone operated by an instructor for demonstration at a tea garden in Baicha Village of Yundong Town, Duyun City of Qiannan Bouyei and Miao Autonomous Prefecture, southwest China's Guizhou Province. Trainees on an agricultural drone application training course in Guizhou Province took part in practical exercises in Duyun City on Friday to improve their skills in operating crop protection drones. (Xinhua/Yang Wenbin)

Trainees learn the operation of agricultural drone at a tea garden in Baicha Village of Yundong Town, Duyun City of Qiannan Bouyei and Miao Autonomous Prefecture, southwest China's Guizhou Province, April 17, 2026. Trainees on an agricultural drone application training course in Guizhou Province took part in practical exercises in Duyun City on Friday to improve their skills in operating crop protection drones. (Xinhua/Yang Wenbin)

An aerial drone photo taken on April 17, 2026 shows a drone operated by an instructor for demonstration at a tea garden in Baicha Village of Yundong Town, Duyun City of Qiannan Bouyei and Miao Autonomous Prefecture, southwest China's Guizhou Province. Trainees on an agricultural drone application training course in Guizhou Province took part in practical exercises in Duyun City on Friday to improve their skills in operating crop protection drones. (Xinhua/Yang Wenbin)