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)osteitis fibrosa纤维性骨炎osteogenic layer生骨层ostium of uterus子宫口osteointegration骨整合osteomyelopathia[医] 骨髓病Ostrea cucullata僧帽牡蛎osteitis carnosa蕈样骨炎osteitis fungosa蕈样骨炎, 肉芽性骨炎osteomyelography骨髓X线照相术,骨髓 x 线照相术Osteoblast cells成骨细胞