загрязнённая вода : 37 phrases in 11 subjects |
Construction | 2 |
Energy industry | 1 |
Environment | 1 |
Hydrology | 2 |
Meat processing | 2 |
Natural resourses and wildlife conservation | 10 |
Nuclear physics | 2 |
Public utilities | 3 |
Rail transport | 1 |
Shipbuilding | 3 |
Water supply | 10 |