Ostran.奥斯特拉(在意大利；东经 13º09' 北纬 43º37')OSTabbr.科学与技术处(=office of science and technology)abbr.作战适用性试验(=operational suitability testing)osteosareoma/radiography骨肉瘤／放射摄影术osteolysis with nephropathy骨质溶解合并肾脏病(非家族性)Osteoporosis in the elderly老年osteotomy of cervical spine颈椎截骨术osteo-chondro-arthritis骨软骨关节炎osteoarthritis alcaptonuria尿黑酸尿骨关节炎Ostensive-inference model明示-推理模式Osteoblast-like cell line成骨样细胞OSTEOPOROSIS/TCD therapy骨质疏松/中药疗法Ostertagia heterospiculagian.异刺奥斯特线虫