| |||
| Frequenza variabile | |||
|
variable frequency : 6 phrases in 4 subjects |
| Electric traction | 1 |
| Electronics | 3 |
| Mechanic engineering | 1 |
| Transport | 1 |
| |||
| Frequenza variabile | |||
|
variable frequency : 6 phrases in 4 subjects |
| Electric traction | 1 |
| Electronics | 3 |
| Mechanic engineering | 1 |
| Transport | 1 |