“太空行走”也叫“出舱活动”(EVA),是指航天员离开太空飞船,在舱外进行活动的过程。狭义的太空行走指航天员在太空中的出舱活动,广义的太空行走还包括航天员在地球以外的其他天体,如月球和未来在火星表面的活动。航天员在太空中处于失重状态,身体移动靠的不是摆动双腿,而是靠载人机动设备或双手(依靠安全索)来提供动力,从这个角度来说,他们只是移动了身体,其实并非 “Spacewalk ” is also called “EVA ” (EVA), refers to astronauts to leave the spacecraft, in the process of activities outside the cabin. Narrow space walk refers to astronauts in space activities, the broad spacewalk also includes astronauts in other celestial bodies, such as the moon and the future activities on the surface of Mars. Astronauts are in a state of weightlessness in space, moving instead of swinging their legs, and instead rely on manned mobile equipment or both hands (relying on safety ropes) to provide power. From this perspective, they are just moving their body, not actually