biological purification
| method
| biological purification | |
| environ. | biologische Reinigung |
| method | |
| gen. | Art und Weise; Methode; Verfahren; Verfahrensweise; Weg; Vorgehen |
| environ. | Methode |
| mater.sc. el. | Arbeitsverfahren |
| stat. | Methoden |
| |||
| biologische Reinigung | |||
|
biological purification : 7 phrases in 2 subjects |
| Environment | 5 |
| Natural resourses and wildlife conservation | 2 |