The world's first unmanned transportation system in an open-pit mine with an altitude above 5,000 meters. [Photo/CCTV] XINING -- At the Yulong Copper Mine in Qamdo, Southwest China's Xizang ...
CHINA'S first ton-level liquid hydrogen powered electric unmanned vertical takeoff and landing (eVTOL) aircraft completed its test flight in the city of Baoji, in China's northwestern Shaanxi province ...