Polish-Arabic dictionary   Subject Number of entries Microsoft 13.635 General 11.476 Environment 7.033 Mathematics 5.377 Electronics 3.782 Radio 2.415 Antennas and waveguides 1.755 Lighting other than cinema 1.610 Electric motors 1.298 Electric traction 1.287 Telegraphy 1.186 Electricity generation 1.182 Telecommunications 1.117 Radiology 1.050 Magnetics 1.035 Power lines 1.029 Automatic control 1.006 Thermal Energy 959 Vacuum tubes 868 Isolation 850 Reliability 710 Sound recording 705 Electric machinery 674 Power system protection 658 Piezoelectric crystals 594 Rail transport 571 Physics 555 Electrical engineering 506 Semiconductors 489 Radiobiology 440 Computer networks 402 Telephony 386 Cables and cable production 365 Power electronics 360 Accumulators 313 Transformers 296 Satellite communications 264 Video recording 209 Welding 206 Wind Energy 168 Metrology 165 Statistics 151 Ecology 133 Printed circuit boards 72 Ultrasound 43 Emphatic 2 Nuclear physics 2 Geriatrics 1.347 Legislative acts 1.348 Nigeria 1.349 Total: 73.433