| |||
| 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 |
| |||
| 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 |