 |
| water recycling: 43 phrases in 14 subjects |
| Aluminium industry | 3 |
| Caspian | 1 |
| Construction | 6 |
| Ecology | 11 |
| Energy industry | 3 |
| Gas processing plants | 1 |
| General | 2 |
| Makarov | 3 |
| Mining | 1 |
| Natural resourses and wildlife conservation | 4 |
| Oil and gas | 1 |
| Technology | 5 |
| Tengiz | 1 |
| Water supply | 1 |