 |
| |||
| canale a frequenze vocali; canale telefonico | |||
| canal telefónico: 16 phrases in 6 subjects |
| Communications | 4 |
| Earth sciences | 1 |
| Electronics | 3 |
| Information technology | 3 |
| Power lines | 4 |
| Telecommunications | 1 |
|
| |||
| canale a frequenze vocali; canale telefonico | |||
| canal telefónico: 16 phrases in 6 subjects |
| Communications | 4 |
| Earth sciences | 1 |
| Electronics | 3 |
| Information technology | 3 |
| Power lines | 4 |
| Telecommunications | 1 |