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biologische Reiniger (сточных вод); biologische Reinigung (Selbstreinigung) | |||
biologische Reinigung (сточных вод) | |||
biologische Klärung; biologische Behandlung; biologisches Verfahren | |||
biologische Reinigung |
биологическая очистка : 22 phrases in 8 subjects |
Construction | 13 |
Environment | 2 |
Hygiene | 2 |
Medical | 1 |
Natural resourses and wildlife conservation | 1 |
Nuclear and fusion power | 1 |
Oil / petroleum | 1 |
Water supply | 1 |