Twospacewalkersfixedacameraontheoutsideoftheinternation...
问题详情：TwospacewalkersfixedacameraontheoutsideoftheinternationalspacestationonMondayandthrewoverboardadata–collectingdevice（装置）,sendingitrollingoffintospacelikeafootball.Thenewcamerawillhelpspacesta...