计算机硬件 输入输出设备 释文 light pen 光笔
- uranographic model
- uranography
- uranolith
- uranology
- Uranometria
- uranometry
- uranoscopy
- Uranus
- Uranus exploration
- Uranus' ring
- uranyl
- uranyl cation-cation complex
- uranyl nitrate
- Urartu Kingdom
- U-Ra series
- Urashima crater
- urate cell
- urate oxidase
- Urbach rule
- urbacide
- Urbain Jean Joseph Le Verrier
- urban accessible transport system
- urban aesthetics
- Urban Affairs Association
- urban agglomeration