Ostern.奥斯特OSTabbr.科学与技术处(=office of science and technology)abbr.作战适用性试验(=operational suitability testing)osteochondrodystrophia[医] 骨软骨营养不良Osteoporosis knowledge骨质疏松知识osteopyretic emaciation骨蒸肌瘦osteomyelitis variolosa天花性骨髓炎osteochondral sclerosis骨干硬化症Osteotomy via olecranon鹰嘴截骨Ostertagia occidentalis西方奥斯特线虫osteochondral fractures骨软骨骨折Osteoplasty of clavicle锁骨成形术osteoporosis of the hip髋关节骨质疏松