 |
| waste energy: 60 phrases in 17 subjects |
| Aluminium industry | 1 |
| Astronautics | 1 |
| Construction | 4 |
| Ecology | 10 |
| Economy | 1 |
| Energy industry | 12 |
| Environment | 1 |
| Firefighting and fire-control systems | 1 |
| General | 2 |
| Law | 1 |
| Makarov | 9 |
| Military | 1 |
| Mining | 1 |
| Natural resourses and wildlife conservation | 1 |
| Oil / petroleum | 2 |
| Technology | 10 |
| Waste management | 2 |