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| frequency band; frequency division; frequency range | |||
| frequency interval | |||
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интервал частот : 25 phrases in 13 subjects |
| Cardiology | 1 |
| Communications | 1 |
| Electronics | 4 |
| Geophysics | 1 |
| Information technology | 1 |
| Mass media | 6 |
| Medical | 2 |
| Military | 1 |
| Nanotechnology | 1 |
| Quantum electronics | 1 |
| Radio | 4 |
| Security systems | 1 |
| Telecommunications | 1 |
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