Accounting	14
Acridology	2
Aeronautics	2
Agriculture	248
Animal husbandry	41
Antennas and waveguides	5
Artillery	1
Astronautics	7
Astronomy	12
Audit	6
Automated equipment	41
Automatic control	26
Automobiles	63
Aviation	20
Aviation medicine	1
Banking	10
Baseball	3
Biology	1
Biotechnology	6
Botany	2
Business	7
Chemistry	110
Cinematography	4
Climatology	1
Coal	22
Commerce	48
Communications	968
Computer networks	4
Computer numerical control	44
Computers	8
Construction	33
Corporate governance	32
Criminal law	22
Cultural studies	5
Customs	3
Data processing	34
Deafblindness	2
Drilling	10
Dyalysis	5
Earth sciences	155
Ecology	4
Economics	167
Education	94
Electric machinery	6
Electric motors	9
Electric traction	2
Electrical engineering	2
Electricity	1
Electricity generation	4
Electronics	849
Energy industry	59
Environment	253
Finances	391
Fish farming pisciculture	19
Fishery fishing industry	20
Food industry	23
Food service and catering	3
Forestry	27
General	625
Genetics	6
Geography	4
Geology	21
Government, administration and public services	4
Health care	144
Helicopters	2
Hobbies and pastimes	6
Horticulture	2
Human rights activism	1
Hydrology	1
Hygiene	1
Immigration and citizenship	26
Industry	56
Information technology	934
Insurance	28
International law	1
International Monetary Fund	165
International trade	5
Internet	16
Isolation	1
Labor law	30
Labor organization	11
Laboratory equipment	1
Law	119
Life sciences	76
Lighting other than cinema	2
Loading equipment	20
Magnetics	2
Marketing	26
Materials science	26
Mathematics	26
Measuring instruments	32
Mechanic engineering	191
Mechanics	2
Medical	203
Metallurgy	23
Meteorology	195
Mexican	11
Microsoft	181
Military	12
Mineral products	6
Mineralogy	10
Mining	2
Municipal planning	4
Name of organization	227
Natural sciences	83
Nautical	1
Navigation	5
Nuclear and fusion power	4
Nuclear physics	46
Obsolete / dated	10
Oil / petroleum	1
Packaging	17
Patents	19
Pest control	5
Pharmacy and pharmacology	18
Photography	1
Physical sciences	4
Physics	2
Piezoelectric crystals	1
Planning	2
Politics	81
Power lines	1
Power system protection	1
Procedural law	1
Project management	2
Psychology	2
Pulp and paper industry	6
Radio	15
Rail transport	10
Real estate	2
Reliability	8
Religion	4
Remote sensing	12
Research and development	3
Satellite communications	1
Scientific	11
Security systems	3
Social science	52
Sociology	4
Soil science	4
Sound recording	20
Spanish	7
Statistics	98
Taxes	25
Technology	458
Telecommunications	9
Telephony	14
Textile industry	37
Thermal Energy	7
Trade unions	1
Transport	746
United Nations	183
Veterinary medicine	2
Video recording	2
Water resources	47
Weapons and gunsmithing	1
Welding	4
Wind Energy	1
Wood processing	1
Work flow	60

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