OSSB麦秸定向刨花板OSSabbr.航天科学局(=Office of Space Sciences)；战略物资局(=Office of Strategic Services)；开放源代码软件(=Open Source Software)ossa sesamoidia pedis足籽骨ossa sesamoidea pedis足籽骨osseous hydatid cysts骨棘球囊ossific ation centers骨化中心ossa carpi proximalia[医] 近列腕骨ossa naviculare pedis[医] 足舟骨ossa sesamoidea manus手籽骨ossa tibiale externum[医] 外胫骨(变)Ossicular replacement听小骨置换osseous spiral lamina骨螺旋板