| |||
| fréquence variable | |||
|
frecuencia variable : 7 phrases in 6 subjects |
| Electric motors | 1 |
| Electric traction | 1 |
| Electronics | 2 |
| Mechanic engineering | 1 |
| Statistics | 1 |
| Transport | 1 |
| |||
| fréquence variable | |||
|
frecuencia variable : 7 phrases in 6 subjects |
| Electric motors | 1 |
| Electric traction | 1 |
| Electronics | 2 |
| Mechanic engineering | 1 |
| Statistics | 1 |
| Transport | 1 |