 |
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| enveloppe d'un signal | |||
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| amplitude | |||
| amplituda: 44 phrases in 11 subjects |
| Analytical chemistry | 1 |
| Antennas and waveguides | 2 |
| Communications | 1 |
| Construction | 14 |
| Electronics | 12 |
| Mathematics | 5 |
| Piezoelectric crystals | 3 |
| Radio | 2 |
| Radiology | 1 |
| Telegraphy | 2 |
| Video recording | 1 |