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| mittlere Frequenz; Zwischenfrequenz f | |||
| fréquence moyenne: 22 phrases in 10 subjects |
| Communications | 3 |
| Electronics | 6 |
| General | 1 |
| Health care | 1 |
| Information technology | 1 |
| Mechanic engineering | 2 |
| Medical appliances | 1 |
| Metallurgy | 3 |
| Statistics | 2 |
| Transport | 2 |
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