 |
| |||
| Hörfrequenz f; Tonfrequenz f | |||
|
tone frequency : 22 phrases in 6 subjects |
| Communications | 11 |
| Electronics | 2 |
| General | 3 |
| Information technology | 4 |
| Microsoft | 1 |
| Telephony | 1 |
|
| |||
| Hörfrequenz f; Tonfrequenz f | |||
|
tone frequency : 22 phrases in 6 subjects |
| Communications | 11 |
| Electronics | 2 |
| General | 3 |
| Information technology | 4 |
| Microsoft | 1 |
| Telephony | 1 |