 |
| |||
| sonar communication | |||
| sonar communications; acoustic communication; acoustic communications | |||
| hydroacoustic communication | |||
| гидроакустическая связь: 33 phrases in 7 subjects |
| Electronics | 5 |
| Makarov | 1 |
| Military | 16 |
| Nautical | 4 |
| Navy | 3 |
| Technology | 3 |
| Telecommunications | 1 |