 |
| |||
| space surveillance system; space surveillance | |||
| система наблюдения за космическим пространством: 24 phrases in 4 subjects |
| Astronautics | 8 |
| General | 1 |
| Military | 10 |
| Technology | 5 |
|
| |||
| space surveillance system; space surveillance | |||
| система наблюдения за космическим пространством: 24 phrases in 4 subjects |
| Astronautics | 8 |
| General | 1 |
| Military | 10 |
| Technology | 5 |