U字母開頭的單詞或詞組(第1頁)：
- UI
- unbounded control mode
- upper way computer
- unashamed
- ultraviolet microscopic absorption spectroscopy
- USMA
- urinary obstruction
- urethral fistula
- unascertainable
- unblocking
- upset price
- ulcerative inflammation
- user service
- upset a decision
- unexplainable
- ultima
- uniaxial anisotropy
- unwarranted infringement
- underwater long-range missile system
- unreadable
- usury laws
- uterus bicornis
- unbalanced
- ultraultramicro method
- urethylan
- USOM
- uncharged
- uninucleate
- up-
- unallowable character
- unthought-of
- urobenzoic acid
- unjustified abuse
- urethropenile
- uncharged species
- ustilagic acid
- urbanism
- unit operations
- unilateral instrument
- undoer