 |
| |||
| prevention of pollution of the sea by oil | |||
| предотвращение загрязнения моря нефтью: 5 phrases in 4 subjects |
| Ecology | 2 |
| General | 1 |
| Oil / petroleum | 1 |
| Water supply | 1 |
|
| |||
| prevention of pollution of the sea by oil | |||
| предотвращение загрязнения моря нефтью: 5 phrases in 4 subjects |
| Ecology | 2 |
| General | 1 |
| Oil / petroleum | 1 |
| Water supply | 1 |