Ostas奥斯塔什OSTabbr.科学与技术处(=office of science and technology)abbr.作战适用性试验(=operational suitability testing)osteo-chiropractic manipulation整脊骨手术疗法Osteoporotic compression fracture骨质疏松性压缩骨折osteoarthrosis deformans endemica[医] 地方性变形性骨关节病, 大骨节病, 卡-贝二氏病osteochondrofibrosarcoma of orbit眼眶骨软骨纤维肉瘤Osteomyelitis of Pelvis in Adults成人骨盆骨骨髓炎osteomyelitis alveolaris chronica慢性牙槽骨髓炎osteofibrosis deformans juvenilis[医] 幼年变形性骨纤维变形Ostwald rs universal-photometer奥氏万能光度计ostium urethrae externum feminina女性尿道外口ostium pharyngeum tubae auditivae[医] 咽鼓管咽口