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| difusão | |||
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| traços F-difusos | |||
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| propagação | |||
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| difusão num semicondutor | |||
| إنتشار: 45 phrases in 10 subjects |
| Antennas and waveguides | 8 |
| Electronics | 2 |
| Environment | 7 |
| International Monetary Fund | 2 |
| Lighting other than cinema | 1 |
| Mathematics | 3 |
| Power lines | 1 |
| Radio | 16 |
| Satellite communications | 4 |
| Statistics | 1 |