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wastewater treatment
gen.	Abwasserreinigung f
chem.	Abwasseraufbereitung f
ed.	Abwasserbehandlung f
transp., environ.	Reinigung von Abwasser

wastewater treatment: 26 phrases in 5 subjects

Chemistry	1
Environment	12
General	4
Natural resourses and wildlife conservation	7
Social science	2