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| modulation d'amplitude; modulation en amplitude | |||
| modulation par changement d'amplitude; modulation par déplacement d'amplitude | |||
| modulazione di ampiezza: 52 phrases in 7 subjects |
| Antennas and waveguides | 2 |
| Communications | 21 |
| Earth sciences | 1 |
| Electronics | 18 |
| Piezoelectric crystals | 4 |
| Radio | 4 |
| Technology | 2 |