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)
osteosareoma cell骨肉瘤细胞
Osteoid formation类骨质形成
osteochondrolysis骨软骨脱病,骨软骨脱离
osteoarthropathia[医] 骨关节病
osteohalisteresis骨钙质缺乏,骨软化
osteolytic factor骨融解因子
osteohalsiteresis[医] 骨[钙]质缺乏