FILE - In this Oct. 19, 2017, file photo, visitors look at a display of satellite technologies at an exhibition highlighting China's achievements under five years of President Xi Jinping's leadership at the Beijing Exhibition Hall in Beijing. China on Tuesday, June 23, 2020 launched the final satellite in its Beidou constellation that emulates the U.S. Global Positioning System, marking a further step in the country's advance as a major space power. (AP Photo/Ng Han Guan, File)
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