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返回舱与大气剧烈摩擦时，会在舱表产生数千度高温，如果不解决防热问题，飞船还没等落地就烧成了灰烬，宇航员的生命安全便无法得到保证。来自中国运载火箭技术研究院高级工程师罗丽娟的研究领域就是返回舱的“防热衣”，正是有了这些在一线默默付出的科学家，才成就了神舟飞船防热材料的高可靠性。“SELF格致论道”是中国科学院全力推出、中国科普博览承办的科学讲坛，致力于精英思想的跨界传播。登陆官方网站（self.org.cn）、微信公众号“SELFtalks”获取更多信息。
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