Ostar奥斯塔尔OSTabbr.科学与技术处(=office of science and technology)abbr.作战适用性试验(=operational suitability testing)osteomyelosclerosis骨髓硬化症Ostertagia dahurican.达荷奥斯特线虫Ostwald rs equation奥斯特瓦尔德电离方程式Ostward color cards[电] 奥斯华特彩色卡Ostwald rs ripening奥斯特瓦尔德催熟Osteocutaneous flap骨皮瓣Ostimeatal Comoplex窦口鼻道复合体ostenslve inference明示推理osteomalacia pelvis骨软化性骨盆osteosarcoma of jaw颌骨骨肉瘤