央视新闻 【转起祝贺！长征七号改遥二运载火箭成功发射】
今天01时51分，我国在文昌航天发射场成功完成长征七号改遥二运载火箭发射，该运载火箭由长征七号运载火箭改进研制而成，用于发射地球同步轨道卫星。本次发射的试验九号卫星主要用于空间环境监测等新技术在轨验证试验。（总台央视记者刘常连 杨弘杨 ）
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