An AG600 "Kunlong" amphibious aircraft flies over the sea off Qingdao, east China's Shandong Province, July 26, 2020. China's indigenously developed AG600 large amphibious aircraft succeeded in its maiden flight over sea in Qingdao. (Xinhua/Li Ziheng)
In pics: China's science and technology achievements in 2020
Source: Xinhua| 2020-12-18 17:51:52|Editor: huaxia