Unell于内尔
UNabbr.(=United Nations) 联合国pron.<口>人,事物,家伙,东西
uncutting wiping towel毛边抹布
unburden oneself to sb向某人倾诉衷情
un- cognition factor非认知因素
unpunched litho master带非穿孔冲头
uncorrelated increment不相关增量
Unguided Aerial Rocket无制导航空火箭
undisturbed one output无干扰输出
unelasticity collision非弹性碰撞
Unfinanced Requirement无资金来源的需求
unconditioned stimulus无条件刺激,无条件剌激,非条件刺激物