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dados de frequência
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dados de frequência: 1182 phrases in 64 subjects
Agriculture2
Antennas and waveguides2
Automatic control3
Brazil5
Chemistry3
Communications313
Earth sciences35
Economy1
Education2
Electric machinery4
Electric motors5
Electric traction2
Electrical engineering1
Electricity generation4
Electronics384
Energy industry3
Environment1
Finances2
General12
Health care12
Industry9
Information technology78
Insurance2
Labor law1
Law2
Life sciences14
Lighting other than cinema2
Magnetics6
Materials science1
Mathematics10
Mechanic engineering7
Medical21
Metallurgy11
Microsoft1
Natural sciences12
Obsolete / dated2
Patents1
Pharmacy and pharmacology3
Physical sciences5
Physics2
Piezoelectric crystals31
Power electronics1
Power lines5
Power system protection2
Radio30
Radiobiology1
Radiology1
Reliability4
Satellite communications1
Scientific1
Semiconductors3
Social science1
Sound recording2
Statistics45
Technology30
Telecommunications1
Telegraphy4
Telephony1
Thermal Energy7
Transport19
Vacuum tubes3
Video recording1
Welding1
Work flow1