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| frequency convertor; frequency changer; frequency converter; electronic frequency converter; electronic frequency convertor; converter | |||
| frequency changer set | |||
| convertitore di frequenza: 23 phrases in 8 subjects |
| Antennas and waveguides | 5 |
| Electric motors | 2 |
| Electronics | 3 |
| Information technology | 1 |
| Mechanic engineering | 7 |
| Radio | 2 |
| Thermal Energy | 2 |
| Vacuum tubes | 1 |