 |
| |||
| 天基监视空间系统 (美国研制中的天基预警系统) | |||
| space-based surveillance system: 9 phrases in 4 subjects |
| Air defense | 2 |
| Earth sciences | 1 |
| Electronics | 1 |
| Space | 5 |
|
| |||
| 天基监视空间系统 (美国研制中的天基预警系统) | |||
| space-based surveillance system: 9 phrases in 4 subjects |
| Air defense | 2 |
| Earth sciences | 1 |
| Electronics | 1 |
| Space | 5 |