Chen Fangyun
... that Chen Fangyun proposed a control system that was crucial for the launch of China's first geosynchronous communications satellite in 1984?
... that <b id="mwBak"><a href="./Chen_Fangyun" id="mwBao" rel="mw:WikiLink" title="Chen Fangyun">Chen Fangyun</a></b> proposed a control system that was crucial for the launch of China's first <a href="./Geosynchronous_satellite" id="mwBas" rel="mw:WikiLink" title="Geosynchronous satellite">geosynchronous communications satellite</a> in 1984?