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eficaz adj.
gen.	aktiv
comp., MS	effektiv
econ.	wirkungsvoll; rechtswirksam; produktiv
med.	effizient
pack.	rationelle Verpackung
patents.	wirksam

eficaz: 188 phrases in 34 subjects

Antennas and waveguides	1
Chemistry	7
Communications	14
Construction	1
Earth sciences	34
Economy	7
Electronics	41
Environment	1
Finances	2
General	16
Health care	2
Immigration and citizenship	1
Industry	3
Information technology	13
International Monetary Fund	3
Law	3
Life sciences	4
Magnetics	3
Mathematics	1
Measuring instruments	3
Mechanic engineering	1
Medical	7
Metallurgy	1
Natural sciences	1
Nuclear physics	1
Physical sciences	1
Physics	1
Research and development	1
Scientific	1
Statistics	6
Technology	2
Telecommunications	1
Transport	3
Welding	1