 |
| waste energies: 21 phrases in 7 subjects |
| Construction | 1 |
| Ecology | 6 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 1 |
| Makarov | 8 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 3 |
|
| waste energies: 21 phrases in 7 subjects |
| Construction | 1 |
| Ecology | 6 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 1 |
| Makarov | 8 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 3 |