Accumulators	2
Acoustics	4
Advertising	4
Aerohydrodynamics	3
Agriculture	13
Air defense	1
Armored vehicles	3
Artillery	16
Astronautics	2
Automated equipment	5
Automobiles	8
Aviation	1
British usage, not spelling	1
British English spelling	1
Cables and cable production	1
Chess	3
Combustion gas turbines	1
Communications	1
Computer networks	1
Computers	4
Construction	17
Drilling	1
Ecology	3
Electrical engineering	3
Electricity	1
Electrochemistry	5
Electronics	21
Energy industry	3
General	13
Geography	1
Geophysics	2
Household appliances	2
Information security and data protection	2
Information technology	14
Makarov	12
Mass media	16
Mechanic engineering	1
Mechanics	1
Medical	3
Medical appliances	6
Metallurgy	5
Metrology	6
Microelectronics	3
Military	43
Mining	5
Music	4
Natural resourses and wildlife conservation	2
Nautical	17
Nuclear and fusion power	1
Occupational health & safety	1
Oil / petroleum	4
Oil and gas technology	1
Photography	4
Physics	1
Radiation	1
Radio	1
Rail transport	4
Road works	1
Robotics	1
Security systems	8
Shipbuilding	3
Silicate industry	2
Solar power	1
Soviet	1
Submarines	1
Technology	62
Telecommunications	30
Telegraphy	1
Telephony	1
Tengiz	1
Thermal engineering	4
Tobacco industry	3
Torpedoes	2
Transport	10