 |
| |||
| очистка сточных вод | |||
|
purification of sewage : 9 phrases in 6 subjects |
| Agriculture | 2 |
| Ecology | 2 |
| Energy industry | 1 |
| Meat processing | 2 |
| Technology | 1 |
| Water resources | 1 |
|
| |||
| очистка сточных вод | |||
|
purification of sewage : 9 phrases in 6 subjects |
| Agriculture | 2 |
| Ecology | 2 |
| Energy industry | 1 |
| Meat processing | 2 |
| Technology | 1 |
| Water resources | 1 |