Ostern.奥斯特OSTabbr.科学与技术处(=office of science and technology)abbr.作战适用性试验(=operational suitability testing)osteoblast-like cell成骨样细胞ostwald's dilution lawOstres plicatula Gelim牡蛎ostium secundum defect继发孔型房间隔缺损Ostwald rs visco meter奥斯特瓦尔德U型毛细管粘度计osteoma knowledge base骨肿瘤知识库Osteochrondrodysplasia骨软骨营养不良Osteoplasty of patella髌骨成形术Osteoclasis of patella髌骨折骨术osteocollagenous fiber骨胶原性纤维