Osma奥斯马OSabbr.操作系统=（Operating System）os entopterygoideum内翼骨os paraspheneoidale副蝶骨oscillator tracking振荡器统调oseen unsteady flow奥新非稳定流oscillating cascade振动叶栅osmotic pump system渗透泵型控释片oscillatory network振荡网络Osmia melanocephalan.黑头壁蜂osmotic equilibrium渗透平衡osmotic brain edema渗透性脑水肿