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| форма сигнала; сигнал | |||
| signal waveform: 17 phrases in 7 subjects |
| Electronics | 6 |
| Geophysics | 1 |
| Information technology | 1 |
| Makarov | 1 |
| Mass media | 3 |
| Technology | 3 |
| Telecommunications | 2 |
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