 |
| treated water: 39 phrases in 19 subjects |
| Caspian | 5 |
| Cooking | 1 |
| Drilling | 1 |
| Ecology | 1 |
| Energy industry | 1 |
| General | 2 |
| Makarov | 2 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |
| Pharmacy and pharmacology | 1 |
| Sakhalin | 8 |
| Technology | 4 |
| Tengiz | 1 |
| Thermal engineering | 1 |
| Water resources | 2 |
| Water supply | 3 |
| Weapons of mass destruction | 1 |