Hello, for example, Yunnan recently held the first certification training course for aerial survey drones. This training course was jointly organized by Yunnan Bureau of Surveying and Mapping and Kunming Yingjun Aviation Technology Co., Ltd., and the organizer set up a top teaching team in China, equipped with more than 20 UAV trainers. Forty-five days of training, including five days of theoretical lessons and forty days of field practice flight at Luoping Hangfei Base. Very satisfied with the adoption, thank you.