OSTabbr.科学与技术处(=office of science and technology)abbr.作战适用性试验(=operational suitability testing)Ostenon.奥斯泰诺(在意大利；东经 9º04' 北纬 46º01')

1. Osteonecrosis is a known complication of corticosteroid therapy.
   骨坏死是皮质激素治疗的一种并发症。
2. Only two knees had localized evidence of osteonecrosis, which appeared to be secondary to the fracture.
   只有两膝有局限性的由骨折引发的骨坏死迹象。