Ungap不隔
UNabbr.(=United Nations) 联合国pron.<口>人,事物,家伙,东西
Unemployment Compensation Board失业救济委员会
uncomfortably bright or glaring贼亮
unfocused questions/longings漫无边际的问题/愿望
unbiassed regression estimative无偏回归估计量
unpardonable lack of discipline不可原谅的缺乏纪律的行为
Unmanned Surveillance Equipment无人值守监视仪
undetected character error rate未检出的字符差错率
Unmanned Aerial Vehicle-Close近程无人空中飞行器
Unclassified vasodilating agent未分类的血管舒张剂