 |
| |||
| многочастотный тон | |||
| multi -frequency tone: 14 phrases in 9 subjects |
| Caspian | 2 |
| Communications | 2 |
| Electronics | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Sakhalin | 1 |
| Security systems | 1 |
| Technology | 4 |
| Telecommunications | 1 |
|
| |||
| многочастотный тон | |||
| multi -frequency tone: 14 phrases in 9 subjects |
| Caspian | 2 |
| Communications | 2 |
| Electronics | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Sakhalin | 1 |
| Security systems | 1 |
| Technology | 4 |
| Telecommunications | 1 |