系统软件 操作系统 释文 operating system, OS 操作系统
- urtite
- Uruapan
- Urucum Mn deposit
- Uruguay
- Uruguayan Drama
- Uruguayan music
- Uruguay, cinema in
- Uruguay Film Academy
- Uruguay private international law
- Uruguay River
- Uruguay Round negotiations on agriculture
- Uruk Culture
- Urumqi
- Urumqi-Changji Integration Area
- Urumqi Confucian Temple）
- Urumqi Metropolitan Area
- Urumqi Mountain Hongshan park
- Urumqi Museum（Memorial Hall of the 8th Route Army General Office in Xinjiang
- Urumqi Qu
- Urumqi Renmin Park
- Urumqi Shi
- Urwind
- Urysohn
- Urysohn-Brouwer lemma
- Urysohn closed space