Osya奥夏OSabbr.操作系统=（Operating System）os presphenoidale前蝶骨oscillatory modal振动模式Osmanthus species木犀属oscillating point振动点Osbeckia capitatan.头序金锦香os parastyloideum副柱骨Osmia yanbianensen.延边壁蜂Osmunda vachelliin.华南紫萁os transpalatinum亘腭骨osmotic - stress渗透胁迫