ORRn.轨道会合雷达；奥尔（姓氏）Orr's method于乌orrhotherapy血清疗法orris camphor[医] 鸢尾脑Orr treatment[医] 奥尔氏疗法(治哆开骨折、骨髓炎)orris fingers[医] 香菖指orrosive wear腐蚀磨损Orr's technicn.海克orrhoimmunity血清免疫orris absolute鸢尾净油orrhodiagnosis[医] 血清诊断法