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waste gas reduction
environ.	Abgasminderung f
waste gas reduction Reduction of the quantity of gaseous emissions in the atmosphere, from motorvehicles, industrial and heating plants, etc. by the adoption of clean technologies, the effectiveness of process operations, the improvement of fuel quality and the installment of chimney stacks high enough to ensure the dispersion of gases
environ.	Abgasminderung f

waste gas reduction: 2 phrases in 2 subjects

General	1
Natural resourses and wildlife conservation	1