【现场视频！我国成功发射天通一号03星】
刚刚，我国在西昌卫星发射中心用长征三号乙运载火箭，成功将天通一号03星发射升空。卫星顺利入轨，任务圆满成功！据悉，#西昌2021年将执行21次航天发射#，任务数量是历年之最。加油，为中国航天点赞！
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