 |
| |||
| secondary pollution | |||
| secondary contamination | |||
| secondary pollution (водотока или водоёма) | |||
| redeposition (Iryna_mudra) | |||
| cross contamination | |||
| cross containment (Yeldar Azanbayev) | |||
| secondary pollution (водоёма или водотока) | |||
| вторичное загрязнение: 5 phrases in 3 subjects |
| Agriculture | 2 |
| Ecology | 2 |
| Geography | 1 |