| |||
| диаграмма направленности | |||
|
direction pattern : 5 phrases in 4 subjects |
| Aviation | 1 |
| Hydroacoustics | 1 |
| Nautical | 1 |
| Technology | 2 |
| |||
| диаграмма направленности | |||
|
direction pattern : 5 phrases in 4 subjects |
| Aviation | 1 |
| Hydroacoustics | 1 |
| Nautical | 1 |
| Technology | 2 |