English-Serbian dictionary   Subject Number of entries Accumulators 245 Aviation 1 Cables and cable production 316 Computer networks 279 Ecology 60 Economics 7.054 Electric machinery 269 Electric motors 879 Electrical engineering 346 Electricity generation 692 Electronics 851 Isolation 164 Lighting other than cinema 94 Magnetics 277 Mammals 58 Mathematics 2.677 Metrology 171 Microsoft 2.110 Ornithology 60 Patents 110 Power electronics 262 Power lines 268 Power system protection 283 Printed circuit boards 37 Radio 1 Risk Management 59 Statistics 37 Thermal Energy 712 Transformers 278 Ultrasound 40 Vacuum tubes 763 Total: 19.453