 |
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| underwater sound system | |||
| hydroacoustic system | |||
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| Dual-frequency Identification Sonar (Андатра) | |||
| гидроакустическая система: 136 phrases in 13 subjects |
| Acoustics | 1 |
| Drilling | 1 |
| Electronics | 1 |
| General | 2 |
| Hydroacoustics | 5 |
| Makarov | 1 |
| Military | 48 |
| Nautical | 15 |
| Navigation | 4 |
| Navy | 12 |
| Oil / petroleum | 2 |
| Technology | 43 |
| United States | 1 |