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| audio frequency AF (NF); low frequency | |||
| audiofrequency | |||
| audible frequency; audible tone | |||
| Low Frequency | |||
| audio frequency (AF); voice frequency | |||
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| a.f. | |||
| low-frequency | |||
| AF; AF -audio frequency; low frequency (30-3000 KHz) | |||
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| low-frequency | |||
| Allemand glossaire | |||
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| Nf | |||
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Niederfrequenz : 33 phrases, 7 sujets |
| Appareils médicaux | 3 |
| Communications | 3 |
| Électronique | 12 |
| Général | 2 |
| Médical | 1 |
| Métallurgie | 2 |
| Technologie | 10 |