| |||
| 地面系统; 陆基系统 | |||
| 地基系统 | |||
| |||
| 地基系统 | |||
|
ground-based system : 19 phrases in 7 subjects |
| Air defense | 2 |
| Aviation | 3 |
| Earth sciences | 1 |
| Electronics | 4 |
| Nautical | 1 |
| Space | 6 |
| United States | 2 |
| |||
| 地面系统; 陆基系统 | |||
| 地基系统 | |||
| |||
| 地基系统 | |||
|
ground-based system : 19 phrases in 7 subjects |
| Air defense | 2 |
| Aviation | 3 |
| Earth sciences | 1 |
| Electronics | 4 |
| Nautical | 1 |
| Space | 6 |
| United States | 2 |