Osten.奥斯特河(在德国)OSTabbr.科学与技术处(=office of science and technology)abbr.作战适用性试验(=operational suitability testing)ostium frontale[医] 额窦口ostracize vt.放逐；osteoid surface类骨质表面ostate branches前列腺支osteomyelograph骨髓X射线照像术Ostea rivularis近江牡蛎osteoprotegerin骨保护素osteocopic pain[医] 骨剧痛Osteoar thritis骨性关节炎osteolytic area溶骨区