 |
| |||
| conversion system | |||
| système de conversion: 12 phrases in 6 subjects |
| Coal | 1 |
| Economy | 1 |
| Electronics | 3 |
| Energy industry | 3 |
| Mechanic engineering | 1 |
| Transport | 3 |
|
| |||
| conversion system | |||
| système de conversion: 12 phrases in 6 subjects |
| Coal | 1 |
| Economy | 1 |
| Electronics | 3 |
| Energy industry | 3 |
| Mechanic engineering | 1 |
| Transport | 3 |