全球首次！长征十号乙完成海上网系回收
双语君约 3 分钟The Long March 10B, China's newest rocket model, made history on Friday as the first Chinese launch vehicle to be successfully recovered after an orbital mission.
At 12:15 pm, seven engines on the Long March 10B's first-stage booster roared to life, burning liquid oxygen and kerosene and lifting the 63.6-meter-tall rocket off a service tower at the Hainan International Commercial Aerospace Launch Center in Wenchang, a coastal city in Hainan province.
The rocket's maiden flight made China the second country, after the United States, to own reliable rocket reusability technology. It also marked the world's first recovery of an orbital-class rocket using a wire arrestment recovery system.
长征十号乙运载火箭由中国航天科技集团有限公司所属中国运载火箭技术研究院抓总研制，为5米直径两级串联构型大型液体运载火箭，芯一级沿用长征十号甲运载火箭一子级状态，采用液氧煤油推进剂，芯二级采用液氧甲烷推进剂，全箭起飞推力约890吨，起飞重量约760吨，首飞箭全箭长度约63米，重复使用状态下近地轨道运载能力16吨，可满足低轨卫星互联网星座部署、大型商业卫星发射等各类任务需求，复用状态下可大幅降低发射成本，具有大运力、高性价比的优势。
Designed and built by the China Academy of Launch Vehicle Technology, a Beijing-based subsidiary of China Aerospace Science and Technology Corp, the Long March 10B is the third in the Long March 10 series of rockets built on technologies developed for the Long March 10A.
此次任务是继长征十号系列运载火箭低空演示验证飞行并在海上安全溅落后对重复使用火箭回收技术的进一步验证。
本次首飞任务成功验证了组合构型总体优化设计技术、大推力箱底传力技术、甲烷自生增压技术等核心关键技术，特别是成功验证了基于隔板贮箱的推进剂管理技术、发动机多次启动和高空点火、复杂力热环境适应性、高精度导航控制、海上平台网系捕获回收等多项一子级重复使用关键核心技术。
后续，长征十号乙运载火箭研制团队将持续优化火箭性能，加快重复使用火箭技术的迭代升级，预计将在今年年底前完成一子级火箭复用飞行。
本次任务是长征系列运载火箭的第657次发射。
跟着China Daily
精读英语新闻
“无痛”学英语，每天20分钟就够！
↓↓↓
推 荐 阅 读