TAIYUAN, April 30, 2019 (Xinhua) -- A Long March 4B carrier rocket, with two Tianhui II-01 satellites, lifts off from the Taiyuan Satellite Launch Center in Taiyuan, north Chinas Shanxi Province, April 30, 2019. China successfully sent two Tianhui II-01 satellites into orbit at 6:52 a.m. Beijing Time Tuesday (1052 GMT Monday) from the Taiyuan Satellite Launch Center. The satellites will be used for scientific experiments, land resource survey, geographic survey and mapping.