理学 计算机存储部件 释 CD/DVD-recordable; CD/DVD-R 可录光碟 一次性写入，多次读取的CD或DVD格式的光碟。
计算机硬件 存储设备 释文 CD/DVD-recordable, CD/DVD-R 可录光碟
- upscattering
- up-selling
- upsetting
- upshift
- upshot
- upside
- upside-down
- Upsilon particle
- upsilon particle
- Upsilon粒子
- upslip
- upslope
- UPS projection
- upstream
- upstream activating sequence
- upstream activation sequence
- upstream activation sequence (UAS)
- upstream expressing sequence
- upstream promoter element
- upstream promoter element (UPE)
- upstream repressing sequence
- upstream scheme
- upstream sequence
- upswept
- uptake