| |||
| système de trois phases | |||
|
three- phase system : 6 phrases in 3 subjects |
| Aviation | 4 |
| Electricity generation | 1 |
| Electronics | 1 |
| |||
| système de trois phases | |||
|
three- phase system : 6 phrases in 3 subjects |
| Aviation | 4 |
| Electricity generation | 1 |
| Electronics | 1 |