Ostran.奥斯特拉(在意大利;东经 13º09' 北纬 43º37')
OSTabbr.科学与技术处(=office of science and technology)abbr.作战适用性试验(=operational suitability testing)
osteogenic growth polypeptideOGP
osteitis cystica generalisata全身性囊状骨炎
osteogenesis imperfecta tarda[医] 延迟性成骨不全, 骨脆症
Osteotomy of mandibular ramus下颌支切骨术
osteochondritis of capitellum肱骨小头骨软骨炎
Osteomyelitis of petrous bone岩骨骨髓炎
osteomyelitis of frontal bone额骨骨髓炎