关于这张图
ISS027-E-034394 (20 May 2011) --- Attired in his Extravehicular Mobility Unit (EMU) spacesuit, NASA astronaut Greg Chamitoff, STS-134 mission specialist, exits the International Space Station?s Quest airlock to begin the first session of extravehicular activity (EVA) for the STS-134 mission. Astronaut Andrew Feustel (out of frame), mission specialist, joined Chamitoff on the spacewalk.
