Polish-Japanese dictionary   Subject Number of entries Accumulators 293 Antennas and waveguides 1.368 Automatic control 829 Book binding 1 Cables and cable production 344 Computer networks 259 Ecology 83 Economics 60 Electric machinery 727 Electric motors 1.039 Electric traction 1.080 Electrical engineering 508 Electricity generation 1.003 Electrochemistry 180 Electronics 4.506 General 1 Isolation 776 Lighting other than cinema 1.309 Magnetics 1.044 Mathematics 825 Metrology 130 Microsoft 15.139 Nuclear physics 666 Patents 173 Physics 506 Piezoelectric crystals 403 Power electronics 395 Power lines 965 Power system protection 607 Printed circuit boards 72 Radio 2.618 Radiobiology 368 Radiology 906 Rail transport 562 Reliability 615 Risk Management 97 Satellite communications 260 Semiconductors 504 Sound recording 677 Superconductivity 581 Telecommunications 964 Telegraphy 983 Telephony 349 Thermal Energy 940 Transformers 272 Ultrasound 41 Vacuum tubes 736 Video recording 206 Welding 201 Wind Energy 162 Total: 47.333