OSNR光信噪比
OSabbr.操作系统=(Operating System)
oscilaltion combustion振荡燃烧
oscillating granulator[机]振动碎粒机
oscillating viscometer摆动黏度计
oscillator measurement振动测量
osmium-tungsten lamp锇钨灯
Oscillatoria limnetican.沼泽颤藻
osegood-Haskins test奥-哈二氏试验
oscillatory shear flow振荡剪切流
oscillatory extinction波状消光
os metacarpale tertium第三掌骨