ORRn.轨道会合雷达；奥尔（姓氏）orris concrete鸢尾浸膏orris root oil[化] 菖蒲油orrugated tank波形外壳orris-powdern.鸢尾草根之粉末orrho immunity血清免疫, 被动免疫orris resinoid鸢尾树脂Orr's treatment胡尔齐orrhomeningitis浆膜炎Orr's technique哈克orrho-immunity[医] 血清免疫； 被动免疫