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2000年9月1日,中国的一种新型传输型遥感卫星—资源二号卫星由长征四号乙运载火箭携带从太原卫星发射中心发射升空,进入预定的太阳同步轨道。 这是中国运载火箭的71次发射(包括用于发射外国卫星的20多次)。至此,进入太空轨道的国产航天器(含中、外联合研制的2颗卫星)的总数达到50个(其中人造卫星49颗,试验飞船1艘)。
On September 1, 2000, a new type of transmitting remote sensing satellite in China, Resource No.2, was launched from the Taiyuan Satellite Launch Center and carried into the scheduled sun-synchronous orbit by carrying the Long March IV B carrier rocket. This is 71 launches by Chinese launch vehicles (including more than 20 times for launching foreign satellites). At this point, the total number of domestic spacecraft (including 2 satellites jointly developed by China and Japan) entering the space orbit has reached 50 (including 49 satellites and 1 experimental spacecraft).