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从“东方红三”号说起甄生斌⒇（西安市第７１中学７１００５４）１９９７年５月１２日，“长征三号甲”运载火箭成功地将“东方红三”号通信卫星送上预定轨道．“东方红三”号通信卫星（ＤＦＨ－３）是我国自行研制的新一代中容量国内通信卫星，重２２６０公斤，携带有２...
Speaking of “Dongfanghongsan” (Xi Shengbin) (20) (Xi’an No. 71 Middle School 710054) On May 12, 1997, the “Changzhen 3rd” launch vehicle successfully sent the “Flying Red III” communication satellite to the scheduled orbit. “Dongfang Hongsan” communication satellite (DFH-3) is a new-generation medium-capacity domestic communication satellite developed by China and weighs 2260 kg and carries 2...