|
active sonar : 17 phrases in 6 subjects |
| Acoustics | 1 |
| Makarov | 3 |
| Military | 6 |
| Natural resourses and wildlife conservation | 1 |
| Nautical | 1 |
| Technology | 5 |
|
active sonar : 17 phrases in 6 subjects |
| Acoustics | 1 |
| Makarov | 3 |
| Military | 6 |
| Natural resourses and wildlife conservation | 1 |
| Nautical | 1 |
| Technology | 5 |