 |
| |||
| electrical energy; energy | |||
| electric energy | |||
| електрическа енергия: 12 phrases in 3 subjects |
| Electronics | 4 |
| Energy industry | 3 |
| Environment | 5 |
|
| |||
| electrical energy; energy | |||
| electric energy | |||
| електрическа енергия: 12 phrases in 3 subjects |
| Electronics | 4 |
| Energy industry | 3 |
| Environment | 5 |