Osoi袭(姓,日本)
OSabbr.操作系统=(Operating System)
os integumentale皮质骨, 膜(成)骨
os telethmoidale远筛骨
osculating cubic密切三次曲线,密切挠曲线
oscillating link振动键
osmium tetroxide四氧化锇
osculating helix密切螺旋线
oscillating body振动体
oscillating unit振荡单元
Osmia pedicornisn.叉壁蜂
os epibranchiale上鳃骨