關於saspacewalkAnytimean的百科

• 【2019•山東東營】What’saspacewalk?Anytimeanastronautgetsoutof...

• 問題詳情：【2019•山東東營】What’saspacewalk?Anytimeanastronautgetsoutofaspacecraft(航天器)whileinspace,itiscalledaspacewalk.Astronautsgoonspacewalksformanyreasons.Forexample,experimentscanbeplacedontheoutsideofaspacecraft.Thisletsscientistslearnhowbe...
• 2019-07-1729324