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to phrases
para num.
chem. vapor
el.mach. par
para
: 50 phrases in 20 subjects
Brazil5
Chemistry5
Electricity generation2
Electronics4
Environment3
Human rights activism2
Life sciences4
Magnetics1
Mathematics2
Microsoft3
Nuclear physics2
Physical sciences2
Physics4
Power electronics2
Power lines2
Rail transport1
Superconductivity1
Telephony2
Transformers2
Vacuum tubes1