 |
| |||
| underwater listening gear; underwater listening device | |||
| гидроакустическое устройство: 6 phrases in 3 subjects |
| Military | 2 |
| Natural resourses and wildlife conservation | 1 |
| Nautical | 3 |
|
| |||
| underwater listening gear; underwater listening device | |||
| гидроакустическое устройство: 6 phrases in 3 subjects |
| Military | 2 |
| Natural resourses and wildlife conservation | 1 |
| Nautical | 3 |