Osya奥夏
OSabbr.操作系统=(Operating System)
Oscillatoria sp.颤藻
oscillating firing振荡发放
osmium trichloride三氯化锇
os vomeropalatinum犁腭骨
ose classification细分类法
Osmia nigroscopulan.黑毛刷壁蜂
oscillograph wagon示波器车
oscillating digger摆动式挖掘机
Osborne Mendel rat奥斯本·门德尔鼠
oscilloscope probe示波嚣探头