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| |||
| disposal of sewage | |||
| irrigation sewage disposal | |||
| sewerage; canalization | |||
| effluent disposal | |||
| отвод сточных вод: 19 phrases in 8 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Construction | 1 |
| Ecology | 7 |
| Energy industry | 1 |
| Makarov | 4 |
| Natural resourses and wildlife conservation | 2 |
| Technology | 2 |