| |||
Tropfkörper m | |||
Rieselbettreaktor m; Rieselstromreaktor m | |||
Tropfkörperanlage f | |||
Perkolationsfilter n | |||
Sickerkörper m; Sickerkörperfilter m |
percolating filter : 6 phrases in 2 subjects |
Environment | 3 |
Natural resourses and wildlife conservation | 3 |