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sprawność f
chem.	rendement m
math.	efficacité f; efficience f

sprawność: 72 phrases in 21 subjects

Accumulators	2
Analytical chemistry	2
Antennas and waveguides	6
Automatic control	1
Chemistry	7
Construction	6
Economy	1
Education	1
Electric motors	4
Electric traction	2
Electricity generation	2
Electrochemistry	6
Energy industry	3
Environment	2
General	3
Lighting other than cinema	10
Nuclear physics	5
Social science	3
Telecommunications	1
Thermal Energy	2
Vacuum tubes	3