 |
| |||
| очень низкие частоты (3-30 кГц) | |||
| fréquences très basses: 9 phrases in 4 subjects |
| Astronautics | 3 |
| Automated equipment | 1 |
| Electronics | 1 |
| Radio | 4 |
|
| |||
| очень низкие частоты (3-30 кГц) | |||
| fréquences très basses: 9 phrases in 4 subjects |
| Astronautics | 3 |
| Automated equipment | 1 |
| Electronics | 1 |
| Radio | 4 |