Accounting	470
Accumulators	49
Acoustics	38
Acridology	35
Agriculture	13737
Alcohol distilling	8
Animal husbandry	687
Antennas and waveguides	781
Art	220
Astronautics	101
Astronomy	14
Automated equipment	1110
Automatic control	190
Aviation	134
Bacteriology	2
Banking	83
Beekeeping	1
Beverages	13
Bible	18
Biochemistry	16
Bioenergy	8
Biology	70
Biotechnology	156
Book binding	19
Botany	922
Brewery	8
Business	180
Cables and cable production	38
Canada	98
Cartography	9
Ceramics	7
Chemical fibers	150
Chemistry	8749
Cinematography	76
Climatology	43
Coal	588
Coffee	4
Commerce	896
Communications	11698
Computer networks	53
Computer numerical control	279
Computers	33
Construction	1858
Corporate governance	610
Criminal law	293
Cultural studies	1005
Customs	78
Data processing	240
Demography	320
Dyalysis	161
Dyes	46
Earth sciences	4652
Ecology	74
Economics	7340
Education	1020
Electric machinery	65
Electric motors	121
Electric traction	165
Electricity generation	109
Electrochemistry	26
Electronics	11156
Employment	30
Energy industry	991
English	54
Entomology	968
Environment	6634
European Union	34
Explosives and Explosive Ordnance Disposal	14
Fat-and-oil industry	5
Finances	11364
Fish farming pisciculture	1586
Fishery fishing industry	551
Food industry	1912
Food service and catering	386
Forestry	1383
Gardening	14
General	18716
Genetics	353
Geography	192
Geology	1157
Glass production	4
Government, administration and public services	177
Health care	4618
Historical	9
Hobbies and pastimes	690
Horticulture	251
Human rights activism	703
Hydrology	167
Hygiene	20
Ichthyology	187
Immigration and citizenship	607
Industry	7287
Information technology	9517
Insurance	1223
International law	71
International Monetary Fund	5966
International trade	217
Investment	30
Isolation	96
Knitted goods	56
Labor law	1277
Labor organization	57
Laboratory equipment	101
Latin American	15
Law	8428
Leather	74
Librarianship	292
Life sciences	3680
Lighting other than cinema	128
Loading equipment	295
Magnetics	107
Marketing	1176
Materials science	1393
Mathematics	2097
Measuring instruments	1407
Mechanic engineering	5617
Mechanics	33
Medical	20832
Medical appliances	4
Metallurgy	3198
Meteorology	7
Mexican	178
Microbiology	46
Microscopy	11
Microsoft	6114
Milk production	135
Mineral products	111
Mineralogy	16
Mining	26
Municipal planning	356
Mythology	1
Name of organization	4293
Natural resourses and wildlife conservation	1086
Natural sciences	4014
Nautical	64
Navigation	6
Nuclear and fusion power	103
Nuclear physics	514
Obsolete / dated	376
Obstetrics	2
Oceanography & oceanology	18
Oil / petroleum	121
Ophthalmology	1
Optics branch of physics	4
Ornithology	3
Packaging	1338
Paint, varnish and lacquer	22
Patents	4111
Pest control	780
Pets	13
Pharmacology	18
Pharmacy and pharmacology	663
Photography	21
Physical sciences	378
Physics	124
Piezoelectric crystals	132
Planning	19
Plastics	27
Politics	3355
Polygraphy	11
Polymers	11
Power electronics	58
Power lines	215
Power system protection	140
Printed circuit boards	5
Private international law	23
Procedural law	236
Psychiatry	1
Public relations	11
Pulp and paper industry	118
Radio	371
Radiology	59
Rail transport	143
Reliability	123
Religion	99
Remote sensing	352
Research and development	200
Resins	18
Risk Management	24
Satellite communications	34
School	2
Scientific	269
Scuba diving	29
Security systems	143
Semiconductors	34
Social science	2361
Socialism	52
Sociology	141
Soil science	271
Sound recording	77
Spanish	153
Spices	19
Statistics	3957
Sugar production	41
Superconductivity	117
Surveying	4
Taxes	618
Technology	2653
Telecommunications	170
Telegraphy	177
Telephony	73
Textile industry	2555
Thermal Energy	141
Tobacco industry	8
Toponym	1
Toxicology	5
Trade unions	215
Transformers	66
Transport	16542
Ultrasound	16
United Nations	5678
United States	1
Vacuum tubes	14
Veterinary medicine	421
Video recording	57
Virology	5
Waste management	67
Water resources	816
Water supply	29
Welding	54
Welfare & Social Security	20
Wind Energy	35
Wood processing	277
Work flow	801
Zoology	15

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