Chen Tao, sales director for Dji's agricultural department, introduces the new type of drone for agricultural care T16 during a news conference in Shenzhen, south China's Guangdong Province, Dec. 4, 2018. The newly-released drone T16, with an all-weather DBF imaging radar that can monitor the environment of farmland, can spray pesticide over an area of 150 mu (about 10 hectares) in an hour, 67 percent higher than the former generation. (Xinhua/Mao Siqian)