Unden残杀威
UNabbr.(=United Nations) 联合国pron.<口>人,事物,家伙,东西
unconditioned reflex reinforcement非条件反射强化
Unemployment has risen steadily.失业者不断增加。
unconditioned orientating reaction[医] 非条件朝向反应
Unmanned Arctic Research Submarine无人驾驶北极考察潜艇
unnormalized floating point number非规格化浮点数
Unbalanced and harmony development非均衡协调发展
Uncorrelated Discriminates Vectors不相关鉴别矢量
unregistrable medical practitioner未能注册的医生
unenumerated constitutional rights未列举宪法权利
Unexplained Atmospheric Phenomenon无法解释的大气现象