OSTAC=Ocean Science and Technology Advisory Committee 海洋科学技术咨询委员会OSTabbr.科学与技术处(=office of science and technology)abbr.作战适用性试验(=operational suitability testing)ostium pulmonale肺动脉口Ostwald rs curve奥斯特瓦尔德曲线osteal resonance[医] 骨性叩响osteitis interna[医] 牙槽骨髓炎ostium incurrens入水小孔osteoid aneurysm[医] [血管扩张性]骨动脉瘤osteogenic cells[医] 骨原细胞osteopsathyrosis骨脆症osteophytic spur赘生骨刺osteopontin gene骨桥素基因