太空记者说，今天来说说神舟二十号航天员乘组的首次出舱。 第一，节点舱是问天气闸舱的备份出舱口，除了定期检查之外，有必要重新启用一下，看看出舱功能是 否完好； 第二，这次出舱任务是在空间站不同位置安装四组防护装置，航天员移动范围大，操作流程复杂，直接 从位于空间站中心点的节点舱出舱，工作效率可以大大提升。 这次舱外活动之后，航天员陈冬成为首位在问天气闸舱、天和节点舱两处都完成了出舱的航天员。 trans 问天气闸舱 ll be 陈 1 -8 CHEN DONG 天和节点舱 THER THE PRODUCT FREE F 简单总结这次太空行走，操作多了效率高了，感觉越来越好，防护多了危险少了，建设越来越好。 （总台央视记者 黄显文 王刚 王紫娇 马非非） 神二十乘组5月22日进行了第一次出舱活动，时隔3年多，航天员再次打开中国空间站节点舱出舱口拥抱 浩瀚宇宙，这是航天员在中国空间站的第20次出舱。节点舱出舱口的上一次开启，是2021年12月26日神 舟十三号第二次出舱。 这次神二十乘组出舱，他们5月22日凌晨两点多就起床开始工作了。这是因为节点舱两侧连接着问天、 梦天两个实验舱段，径向连接着神舟二十号飞船。这样一 ...

Core Points - The Shenzhou-20 mission successfully conducted its first extravehicular activity (EVA) with astronauts Chen Dong, Chen Zhongrui, and Wang Jie collaborating closely with ground support [1][11] - This EVA marked the first for astronaut Chen Zhongrui and the fourth for Chen Dong, who became the first astronaut to exit both the weather observation airlock and the node cabin [1][3] Summary by Sections - **EVA Details** - Astronaut Chen Dong opened the node cabin door, allowing light from space to enter [3] - The node cabin's exit is smaller in diameter by 15 centimeters compared to the weather observation airlock, requiring careful maneuvering during the EVA [5] - The astronauts completed approximately 8 hours of extravehicular activities before returning to the node cabin [9] - **Mission Achievements** - The EVA successfully installed a previously transferred space debris protection device and conducted inspections and maintenance of external equipment [7] - This mission validated the assembly construction model where equipment is operated before astronauts exit, providing valuable insights for future large-scale assembly operations [11] - The new space debris protection device enhances the safety and stability of the space station's operations [11]