 |
| |||
| persistency | |||
| отпорност: 21 phrases in 8 subjects |
| Cables and cable production | 1 |
| Economy | 1 |
| Electric machinery | 2 |
| Electric motors | 4 |
| Electronics | 4 |
| Isolation | 1 |
| Thermal Energy | 2 |
| Vacuum tubes | 6 |
|
| |||
| persistency | |||
| отпорност: 21 phrases in 8 subjects |
| Cables and cable production | 1 |
| Economy | 1 |
| Electric machinery | 2 |
| Electric motors | 4 |
| Electronics | 4 |
| Isolation | 1 |
| Thermal Energy | 2 |
| Vacuum tubes | 6 |