| |||
очистка хозяйственно-бытовых сточных вод | |||
очистка сточных вод |
sewage purification : 26 phrases in 12 subjects |
Agriculture | 2 |
Construction | 4 |
Ecology | 3 |
Energy industry | 1 |
Makarov | 2 |
Meat processing | 4 |
Medical | 1 |
Natural resourses and wildlife conservation | 2 |
Nuclear physics | 1 |
Public utilities | 1 |
Technology | 2 |
Water resources | 3 |