航天器 (hángtiānqì): This term means spacecraft or space vehicle. It includes various types of vehicles designed for travel in outer space, such as satellites, rockets, shuttles, etc.
模块 (móduō): This term translates to module or component. It refers to individual units that are combined together to form a larger structure or system.
生命保障系统 (shēngmìng bǎozhàng xìtǒng): This term means life support system. It encompasses all equipment and procedures necessary for sustaining human life in extreme environments like space stations.