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очистка сточных вод : 270 phrases in 32 subjects |
| Agriculture | 3 |
| Biology | 1 |
| Business | 1 |
| Construction | 42 |
| Ecology | 58 |
| Economics | 2 |
| Energy industry | 38 |
| Environment | 1 |
| European Bank for Reconstruction and Development | 3 |
| European Union | 1 |
| Forestry | 1 |
| Gas processing plants | 1 |
| General | 1 |
| Hydraulic engineering | 3 |
| International law | 1 |
| Leather | 1 |
| Makarov | 22 |
| Meat processing | 4 |
| Medical | 2 |
| Metallurgy | 1 |
| Military | 1 |
| Natural resourses and wildlife conservation | 18 |
| Oil and gas technology | 2 |
| Pulp and paper industry | 1 |
| Sakhalin | 2 |
| Soviet | 1 |
| Technology | 29 |
| Tengiz | 1 |
| United Nations | 1 |
| Water resources | 3 |
| Water supply | 23 |
| Weapons of mass destruction | 1 |