A prototype magnetic-levitation train is pictured during a trial-run on a maglev test line in east China's Shanghai, June 21, 2020. Performance checks of China's domestically-developed prototype magnetic-levitation train, with a designed top speed of 600 km per hour, began in Shanghai Sunday. The testing prototype, which has only one car, can check and optimize the key technologies and core system components of the high-speed maglev system and lay a technological basis for the forthcoming engineering prototype, according to the train maker.