神舟二十号乘组圆满完成首次出舱活动 航天员出舱与货物出舱任务首次关联耦合实施又意味着什么？

Core Points - The Shenzhou-20 mission successfully conducted an extravehicular activity (EVA) where astronauts Chen Dong, Chen Zhongrui, and Wang Jie installed a space debris protection device and performed equipment inspections [1][6] - This mission marks the first time astronauts exited through the node cabin instead of the airlock, enhancing operational flexibility and reliability [6][7] - The coupling of astronaut EVA with cargo operations represents a new approach to improve efficiency in space station tasks [8] Group 1 - The Shenzhou-20 crew completed an 8-hour EVA, successfully returning to the Tianhe core module [1][6] - The choice of the node cabin for EVA allows for reduced transfer distances and better performance testing of backup systems [7] - The mission involved extensive preparation and training to address the complexities of working in the smaller space of the node cabin [7][8] Group 2 - The mission aims to ensure the long-term operation of the Chinese space station, which is expected to function for over ten years [8][9] - Astronauts are essential for tasks that require fine motor skills and quick decision-making, which cannot be fully replicated by robotic arms [10] - The collaboration between astronauts and robotic systems is crucial for the maintenance and operation of the space station [10]