| |||
| кольцо источников | |||
|
source ring : 4 phrases in 4 subjects |
| Aerohydrodynamics | 1 |
| Antennas and waveguides | 1 |
| Astronautics | 1 |
| Technology | 1 |
| |||
| кольцо источников | |||
|
source ring : 4 phrases in 4 subjects |
| Aerohydrodynamics | 1 |
| Antennas and waveguides | 1 |
| Astronautics | 1 |
| Technology | 1 |