Osty奥斯蒂
OSTabbr.科学与技术处(=office of science and technology)abbr.作战适用性试验(=operational suitability testing)
oster chaser管螺纹梳形板牙
osteopyrexia骨蒸劳, 骨蒸
Ostracodermi甲胄鱼类
ostracitoxin粗品箱鲀毒素
Ostepoprosis骨质疏松
Ostwald rule奥斯特瓦尔德稳定态规律
Osteosaccoma骨肉瘤
ostracoderms甲青鱼类
osteofistula骨瘘疽