 |
| |||
| non-fecal (о сточных водах, бактериях и др.) | |||
| нефекальный: 6 phrases in 4 subjects |
| Construction | 3 |
| Ecology | 1 |
| Makarov | 1 |
| Sewage and wastewater treatment | 1 |
|
| |||
| non-fecal (о сточных водах, бактериях и др.) | |||
| нефекальный: 6 phrases in 4 subjects |
| Construction | 3 |
| Ecology | 1 |
| Makarov | 1 |
| Sewage and wastewater treatment | 1 |