 |
| |||
| frecuencia variable | |||
|
variable-frequency : 8 phrases in 5 subjects |
| Electric traction | 1 |
| Electronics | 4 |
| Mechanic engineering | 1 |
| Technology | 1 |
| Transport | 1 |
|
| |||
| frecuencia variable | |||
|
variable-frequency : 8 phrases in 5 subjects |
| Electric traction | 1 |
| Electronics | 4 |
| Mechanic engineering | 1 |
| Technology | 1 |
| Transport | 1 |