data relay
| transponder
| data relay | |
| dat.proc. | 数据中继 |
| transponder | |
| avia. | 异频雷达收发机; 转调器; 发送-应答机; 询问机 |
| IT од. | 转发器 |
| oil | 脉冲收发两用机 |
| racing од. | 应答器 |
| rem.sens. | 脉冲转发器; 发射机应答器 |
| space | 应答机 |
| |||
| 数据中继 | |||
| 数据中转 | |||
|
data relay : 83 phrases in 10 subjects |
| Air defense | 1 |
| Aviation | 14 |
| Cartography | 1 |
| Earth sciences | 7 |
| Electronics | 13 |
| Geophysics | 1 |
| Information technology | 1 |
| Space | 37 |
| Technology | 4 |
| United States | 4 |