Abbreviation	2
Accounting	621
Accumulators	95
Acoustics	53
Acridology	63
Aerohydrodynamics	19
Aeronautics	113
Agriculture	20808
Airships	2
Alcohol distilling	12
Ammunition	14
Animal husbandry	968
Antennas and waveguides	1240
Architecture	4
Armored vehicles	53
Art	207
Artillery	190
Astronautics	176
Astronomy	27
Automated equipment	2014
Automatic control	233
Automobiles	1694
Aviation	920
Aviation medicine	9
Bacteriology	6
Ballistics	19
Banking	563
Baseball	205
Beekeeping	1
Beverages	15
Biochemistry	22
Bioenergy	10
Biology	65
Biotechnology	201
Book binding	74
Botany	1489
Brewery	22
Building materials	2
Business	237
Cables and cable production	99
Cartography	23
Ceramics	17
Chemical fibers	180
Chemistry	11816
Cinematography	108
Climatology	41
Coal	1862
Coffee	2
Commerce	1151
Communications	17370
Computer networks	64
Computer numerical control	474
Computers	381
Construction	3128
Corporate governance	589
Criminal law	419
Cryptography	6
Cultural studies	530
Customs	177
Data processing	286
Deafblindness	33
Demography	355
Drilling	608
Drives	4
Dyalysis	233
Dyes	49
Earth sciences	7174
Ecology	187
Economics	8674
Education	2594
Electric machinery	119
Electric motors	261
Electric traction	300
Electrical engineering	16
Electricity	209
Electricity generation	222
Electrochemistry	51
Electronics	19845
Embryology	1
Employment	44
Energy industry	1512
Engines	34
English	1
Entomology	1538
Environment	8984
European Union	15
Explosives and Explosive Ordnance Disposal	25
Fat-and-oil industry	10
Finances	15418
Fish farming pisciculture	1788
Fishery fishing industry	723
Food industry	2248
Food service and catering	563
Footwear	79
Forensics	1
Forestry	2009
Fortification	4
Gardening	28
General	26297
Genetics	452
Geography	461
Geology	130
Geometry	1
Glass production	12
Government, administration and public services	236
Health care	6041
Heating	1
Helicopters	32
Hobbies and pastimes	928
Horticulture	449
Human rights activism	795
Hydraulics	2
Hydrology	206
Hygiene	22
Ichthyology	218
Immigration and citizenship	806
Industry	10336
Information technology	14113
Insurance	1531
International law	85
International Monetary Fund	6629
International trade	261
Internet	211
Investment	40
Isolation	143
Jargon	2
Jet engines	8
Knitted goods	103
Labor law	1631
Labor organization	116
Laboratory equipment	176
Lasers	167
Latin American	24
Law	10386
Leather	121
Librarianship	296
Life sciences	4955
Lighting other than cinema	190
Loading equipment	628
Logistics	21
Machine tools	30
Magnetics	220
Mammals	6
Marketing	1641
Materials science	2264
Mathematics	2663
Measuring instruments	2494
Mechanic engineering	10391
Mechanics	134
Medical	24829
Medical appliances	3
Metallurgy	4648
Meteorology	4207
Mexican	281
Microbiology	77
Microelectronics	5
Microscopy	21
Microsoft	9403
Military	658
Milk production	182
Mineral products	112
Mineralogy	29
Mining	34
Municipal planning	547
Name of organization	4485
Natural resourses and wildlife conservation	994
Natural sciences	5540
Nautical	317
Navigation	51
Navy	15
Nuclear and fusion power	141
Nuclear physics	806
Obsolete / dated	448
Obstetrics	4
Oceanography & oceanology	15
Oil / petroleum	218
Oil and gas	1
Oil and gas technology	1
Ophthalmology	37
Optics branch of physics	10
Ornithology	1
Packaging	2308
Paint, varnish and lacquer	23
Patents	5287
Pest control	885
Pets	12
Phaleristics	6
Pharmacology	24
Pharmacy and pharmacology	921
Philately / stamp collecting	1
Photography	86
Physical sciences	533
Physics	210
Piezoelectric crystals	150
Pipelines	4
Planning	14
Plastics	51
Plumbing	15
Pneumatics	1
Police	175
Politics	4823
Polygraphy	37
Polymers	28
Power electronics	104
Power lines	274
Power system protection	223
Printed circuit boards	8
Private international law	23
Procedural law	320
Procurement	62
Production	3
Programming	3
Project management	32
Psychiatry	2
Psychology	314
Public relations	7
Pulp and paper industry	144
Radio	642
Radiolocation	54
Radiology	93
Rail transport	294
Real estate	310
Reliability	180
Religion	106
Remote sensing	381
Research and development	261
Resins	25
Risk Management	25
Road works	2
Satellite communications	53
School	8
Scientific	356
Scuba diving	28
Security systems	182
Semiconductors	47
Shipbuilding	6
Skydiving	14
Social science	2682
Socialism	31
Sociology	178
Soil science	321
Sound recording	137
Spanish	196
Spices	25
Sports	2
Statistics	4769
Stonemasonry	8
Sugar production	67
Superconductivity	180
Surveying	9
Taxes	679
Technology	20562
Telecommunications	320
Telegraphy	262
Telephony	132
Television	23
Textile industry	3229
Thermal Energy	280
Thermal engineering	12
Tinware	2
Tobacco industry	2
Tools	7
Topography	15
Toponym	1
Toxicology	1
Trade unions	280
Transformers	76
Transport	23543
Turbines	6
Ultrasound	16
United Nations	6165
United States	16
Vacuum tubes	36
Ventilation	4
Veterinary medicine	510
Video recording	89
Virology	5
Waste management	86
Water resources	1015
Water supply	45
Weapons and gunsmithing	179
Weapons of mass destruction	2
Welding	76
Welfare & Social Security	24
Wind Energy	34
Winemaking	1
Wood processing	452
Work flow	990
Zoology	6