工学 智能车辆 释 tag；transponder 电子标签 对具有微波通信和信息存储功能的可移动对象的识别装置。又称车载单元（on board unit;OBU）。
计算机硬件 输入输出设备 释文 radio frequency identification devices tag, RFID tag 射频识别标签
- Ruan Jingqing
- Ruan Jizhi
- Ruan Keqiang
- Ruan Lingyu
- Ruanmoni
- ruan music
- Ruan Weizhou
- Ruan Xiaoxu
- Ruan Xueyu
- Ruan Yu
- Ruan Yuan
- Ruan Yuan's Catalog of Inscriptions on Sacrificial Vessels
- Ruan Zhangjing
- Ruapehu Volcano
- ru atom frequency standard
- Ru based superconductor
- Ru-based superconductor
- rubato
- ruba’i quatrains
- rubber
- rubber and plastic magnetic materials
- rubber band skipping
- rubber-belt sorter
- rubber blight
- rubber calender molding