 |
| |||
| acoustic link; sound channel | |||
| акустический канал: 13 phrases in 8 subjects |
| Acoustics | 1 |
| Hi-Fi | 1 |
| Mass media | 4 |
| Nautical | 1 |
| Oilfields | 1 |
| Security systems | 2 |
| Technology | 1 |
| Weapons of mass destruction | 2 |
|
| |||
| acoustic link; sound channel | |||
| акустический канал: 13 phrases in 8 subjects |
| Acoustics | 1 |
| Hi-Fi | 1 |
| Mass media | 4 |
| Nautical | 1 |
| Oilfields | 1 |
| Security systems | 2 |
| Technology | 1 |
| Weapons of mass destruction | 2 |