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dados de frequência
: 1277 phrases in 63 subjects
Agriculture4
Antennas and waveguides3
Automatic control3
Chemistry3
Communications309
Earth sciences38
Economy1
Education2
Electric machinery4
Electric motors6
Electric traction4
Electrical engineering1
Electricity generation3
Electronics437
Energy industry3
Environment2
Finances2
General13
Health care13
Industry10
Information technology88
Insurance2
Labor law2
Law2
Life sciences14
Lighting other than cinema1
Magnetics3
Materials science1
Mathematics22
Mechanic engineering9
Medical20
Metallurgy20
Microsoft7
Natural sciences12
Nuclear physics1
Obsolete / dated2
Patents1
Pharmacy and pharmacology3
Physical sciences6
Physics2
Piezoelectric crystals33
Power electronics2
Power lines3
Power system protection2
Radio31
Radiobiology1
Reliability2
Satellite communications1
Scientific1
Semiconductors3
Social science1
Sound recording3
Statistics38
Technology33
Telecommunications1
Telegraphy3
Telephony1
Thermal Energy6
Transport22
Vacuum tubes5
Video recording3
Welding1
Work flow2