OSNR光信噪比OSabbr.操作系统=（Operating System）Osmolality disturbance渗透压紊乱oscillator phase noise振荡器相位噪声oscillating convulsion[医] 摆动性惊厥oscillatory compaction振荡压实Oscillatoria subbrevisn.亚短颤藻oscillographic display示波显示Osmia concavoclypearisn.凹壁蜂Oscillatoria rubescensn.红色颤藻osmotic fragility test渗透脆性试验oscillating freestream振荡来流