Ostan纯氢氧化钠
OSTabbr.科学与技术处(=office of science and technology)abbr.作战适用性试验(=operational suitability testing)
Ostrinia furnacalis亚洲玉米螟
Ostiomeatal complex窦口鼻道复合体
Osteoclasis of ulna尺骨折骨术
osteoma of bronchus支气管骨瘤
Osteoplasty of ulna尺骨成形术
osteogenic inducter成骨诱导物