网络与数据通信 有线网络 释文 data service unit/channel service unit, DSU/CSU 数据服务单元/通道服务单元
- Rényi theorem
- Río Celeste
- Río Chagres
- Río Coco
- Río Grande de Térraba
- Río San Juan
- Río Tipitapa
- Rómulo Gallegos
- Rôjin Z
- Röhm Purge
- Röhrl
- Röntgen crater
- Röntgen ray
- Röntgen Satellite
- Röntgen, Wilhelm Konrad
- Rörstrand
- Rössler equation
- Rückert
- Rückert zero-point theorem
- Rājput painting
- R_ξ gauge
- R_ξ-gauge
- R_ξ-gauge and unitary gauge
- R_ξ规范
- R_ξ规范和幺正规范