tracking and data relay
| experiment
| tracking and data relay abbr. | |
| avia. | 跟踪与数据继电器 |
| experiment abbr. | |
| gen. | 进行实验 |
| environ. | 实验 |
| math. | 试验，试探 |
| met. | 科研设备; 科学仪器 |
| oil | 实验 |
| scient. | 进行试验 |
| space | 科研 设备 |
| sport. | 进行实验 |
| tech. | 试验 |
| |||
| 跟踪与数据继电器 | |||
| 跟踪与数据中继 | |||
|
tracking and data relay : 17 phrases in 7 subjects |
| Air defense | 1 |
| Aviation | 4 |
| Earth sciences | 1 |
| Electronics | 3 |
| Information technology | 1 |
| Space | 5 |
| United States | 2 |