 |
| |||
| Richtsystem n (микрофона) | |||
| направленная система: 19 phrases in 9 subjects |
| Antennas and waveguides | 1 |
| Astronomy | 1 |
| Aviation | 1 |
| Education | 2 |
| Electronics | 5 |
| Energy industry | 2 |
| Missiles | 1 |
| Radio | 5 |
| Technology | 1 |
|
| |||
| Richtsystem n (микрофона) | |||
| направленная система: 19 phrases in 9 subjects |
| Antennas and waveguides | 1 |
| Astronomy | 1 |
| Aviation | 1 |
| Education | 2 |
| Electronics | 5 |
| Energy industry | 2 |
| Missiles | 1 |
| Radio | 5 |
| Technology | 1 |