| |||
| frequência deslocada | |||
|
offset frequency : 9 phrases in 4 subjects |
| Communications | 1 |
| Electronics | 3 |
| Piezoelectric crystals | 4 |
| Radio | 1 |
| |||
| frequência deslocada | |||
|
offset frequency : 9 phrases in 4 subjects |
| Communications | 1 |
| Electronics | 3 |
| Piezoelectric crystals | 4 |
| Radio | 1 |