Portuguese-Serbian dictionary   Subject Number of entries Economics 6.689 Microsoft 2.932 Mathematics 2.137 Statistics 887 Electric motors 872 Electronics 748 Vacuum tubes 693 Electricity generation 657 Thermal Energy 636 Electrical engineering 305 Cables and cable production 282 Magnetics 274 Power electronics 256 Power system protection 255 Computer networks 238 Power lines 231 Transformers 226 Accumulators 207 Electric machinery 188 Isolation 129 Metrology 127 Patents 104 Lighting other than cinema 91 Mammals 65 Ornithology 63 Risk Management 54 Ecology 52 Printed circuit boards 37 Ultrasound 32 Obsolete / dated 2 Radio 1 Geriatrics 1.347 Legislative acts 1.348 Nigeria 1.349 Total: 23.514