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| Fourier expansion | |||
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| Fourier decomposition | |||
| разложение Фурье: 20 phrases in 9 subjects |
| Antennas and waveguides | 1 |
| Combustion gas turbines | 1 |
| Firefighting and fire-control systems | 1 |
| Information technology | 1 |
| Makarov | 6 |
| Mathematics | 4 |
| Navigation | 1 |
| Quantum electronics | 1 |
| Technology | 4 |