Maglev train with a speed of 600 kilometers per hour debuted at the World Manufacturing ConferenceChildren learned scientific knowledge with National Science Popularization Day approachingAutonomous driving vehicles start commercialized demonstration operation in S ChinaChinese carriers allowed to operate more flights to U.S.China's space telescopes precisely measure brightest gammaChina's Deep Space Exploration Lab eyes top global talentsTwo crews set for Tiangong station in '23Stronger support for advanced machine tools urgedHuawei embraces allMobile World Congress 2023 sees strong return of Asian participants