释义 |
extravehicular activity
extravehicular activityastronaut Randy Bresnik on a mission at the International Space Station inNovember 2009ex·tra·ve·hic·u·lar activity E0303700 (ĕk′strə-vē-hĭk′yə-lər)n. Abbr. EVA Activity or maneuvers performed by an astronaut outside a spacecraft in space.extravehicular activity
extravehicular activity (eks-tră-vi-hik -yŭ-ler) See EVA.extravehicular activity[¦ek·strə·və′hik·yə·lər ak′tiv·əd·ē] (aerospace engineering) Activity conducted outside a spacecraft during space flight. AcronymsSeeEVA |