Accounting	4
Acoustics	28
Aerohydrodynamics	31
Aeronautics	4
Agrochemistry	2
Air defense	1
Antarctic	2
Antennas and waveguides	6
Armored vehicles	8
Astronautics	130
Athletics	3
Automated equipment	135
Automobiles	40
Aviation	66
Aviation medicine	1
Bridge construction	1
British usage, not spelling	1
Building materials	1
Business	1
Business style	1
Cables and cable production	20
Cartography	4
Caspian	2
Cement	3
Chemistry	4
Chromatography	1
Cinematography	1
Combustion gas turbines	4
Communications	4
Computers	4
Construction	46
Cycling other than sport	1
Dental implantology	5
Dermatology	1
Drilling	8
Ecology	20
Economics	1
Electrical engineering	48
Electricity	5
Electronics	161
Energy industry	44
Energy system	2
Engines	1
Firefighting and fire-control systems	9
Fishery fishing industry	1
Food industry	2
Forensics	1
Forestry	27
Gas processing plants	2
General	27
Geology	7
Geophysics	52
GOST	4
Gyroscopes	4
Hi-Fi	1
High energy physics	1
High frequency electronics	2
Hindi	1
Household appliances	17
Hydraulic engineering	4
Hydraulics	1
Hydrography	5
Hydrology	47
Ice formation	1
Industry	4
Informal	1
Information technology	15
Jet engines	1
Lasers	2
Leather	1
Level measurement	1
Logging	2
Machinery and mechanisms	2
Magnetics	1
Makarov	128
Mass media	50
Mathematics	3
Measuring instruments	24
Mechanic engineering	3
Mechanics	2
Medical	74
Medical appliances	45
Metallurgy	22
Meteorology	11
Metrology	91
Microelectronics	7
Military	81
Mining	19
Missiles	6
Molikpaq	5
Nanotechnology	8
Natural resourses and wildlife conservation	12
Nautical	101
Navigation	27
Non-destructive testing	1
Nuclear and fusion power	5
Nuclear physics	40
Occupational health & safety	6
Oceanography & oceanology	4
Oil / petroleum	25
Oil and gas	6
Oil and gas technology	7
Oil processing plants	1
Oilfields	4
Optics branch of physics	2
Pharmacy and pharmacology	1
Photography	1
Physics	20
Plastics	1
Polygraphy	3
Polymers	8
Production	2
Programming	1
Public utilities	2
Pulp and paper industry	2
Quality control and standards	5
Quantum electronics	18
Radiation	150
Radio	5
Radioengineering	10
Rail transport	4
Refrigeration	3
Remote sensing	1
Road works	4
Robotics	1
Roll stock	15
Sakhalin	10
Sakhalin R	1
Scientific	3
Security systems	1
Seismology	5
Shipbuilding	7
Solar power	3
Soviet	18
Space	109
Sports	2
Stock Exchange	2
Surgery	1
Swimming	1
Technology	495
Telecommunications	64
Telephony	1
Tengiz	5
Textile industry	14
Thermal engineering	9
Tools	1
Torpedoes	2
Trademark	1
Transformers	2
Transport	43
Water resources	12
Water supply	2
Welding	1
Well control	1
Wood processing	1
Yachting	2

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