短語(yǔ)詞組短語(yǔ)Orion Molecular Cloud Complex 獵戶座分子雲(yún)團(tuán);座分子Orion Molecular Cloud 2 獵戶座分子雲(yún)Orion Molecular Cloud 1 獵戶座分子雲(yún) 返回 orion molecular cloud