 |
| |||
| Frequenzsignal n | |||
|
frequency signal : 69 phrases in 11 subjects |
| Automated equipment | 1 |
| Communications | 19 |
| Electronics | 25 |
| General | 2 |
| Information technology | 2 |
| Measuring instruments | 1 |
| Medical appliances | 1 |
| Radio | 5 |
| Technology | 11 |
| Telephony | 1 |
| Trade unions | 1 |