 |
| |||
| secondary energy source (ssn) | |||
| вторичный источник энергии: 5 phrases in 4 subjects |
| Electrical engineering | 1 |
| Electronics | 1 |
| Energy industry | 2 |
| Makarov | 1 |
|
| |||
| secondary energy source (ssn) | |||
| вторичный источник энергии: 5 phrases in 4 subjects |
| Electrical engineering | 1 |
| Electronics | 1 |
| Energy industry | 2 |
| Makarov | 1 |