 |
| waste products: 50 phrases in 18 subjects |
| Agriculture | 1 |
| Aluminium industry | 3 |
| Animal husbandry | 1 |
| Chemical compounds | 1 |
| Ecology | 3 |
| Energy industry | 1 |
| Gas processing plants | 5 |
| General | 9 |
| Industry | 1 |
| Makarov | 5 |
| Mathematics | 2 |
| Medical | 1 |
| Mining | 2 |
| Nanotechnology | 1 |
| Natural resourses and wildlife conservation | 3 |
| Oilfields | 2 |
| Shipbuilding | 1 |
| Technology | 8 |