Accounting	14
Acridology	2
Aeronautics	2
Agriculture	420
Animal husbandry	38
Antennas and waveguides	4
Art	1
Artillery	6
Astronautics	7
Astronomy	1
Automated equipment	46
Automatic control	27
Automobiles	55
Aviation	22
Aviation medicine	1
Banking	5
Baseball	3
Biology	1
Biotechnology	5
Botany	1
Business	1
Cables and cable production	2
Chemistry	126
Cinematography	6
Climatology	1
Coal	24
Commerce	56
Communications	992
Computer networks	4
Computer numerical control	55
Computers	11
Construction	42
Corporate governance	32
Criminal law	16
Cultural studies	8
Customs	7
Data processing	29
Deafblindness	3
Drilling	14
Dyalysis	5
Earth sciences	176
Ecology	4
Economics	194
Education	93
Electric machinery	12
Electric motors	9
Electric traction	11
Electrical engineering	2
Electricity	2
Electricity generation	47
Electronics	873
Energy industry	93
Environment	270
European Union	2
Finances	383
Fish farming pisciculture	22
Fishery fishing industry	14
Food industry	23
Food service and catering	3
Forestry	69
General	688
Genetics	6
Geography	5
Health care	147
Helicopters	2
Hobbies and pastimes	13
Horticulture	2
Human rights activism	2
Immigration and citizenship	24
Industry	71
Information technology	993
Insurance	19
International law	1
International Monetary Fund	156
International trade	4
Internet	14
Isolation	11
Labor law	35
Labor organization	12
Laboratory equipment	2
Law	142
Librarianship	2
Life sciences	84
Lighting other than cinema	2
Loading equipment	6
Magnetics	2
Marketing	29
Materials science	29
Mathematics	23
Measuring instruments	30
Mechanic engineering	246
Mechanics	1
Medical	212
Metallurgy	23
Meteorology	182
Mexican	4
Microsoft	190
Military	11
Mineral products	6
Mineralogy	10
Mining	1
Municipal planning	8
Name of organization	395
Natural sciences	90
Navigation	1
Nuclear and fusion power	4
Nuclear physics	39
Obsolete / dated	5
Oil / petroleum	1
Packaging	16
Patents	41
Pest control	5
Pharmacy and pharmacology	18
Photography	2
Physical sciences	3
Physics	1
Piezoelectric crystals	2
Planning	2
Politics	108
Power lines	3
Power system protection	2
Procedural law	3
Project management	2
Psychology	3
Pulp and paper industry	6
Radio	29
Rail transport	12
Real estate	2
Reliability	9
Religion	4
Remote sensing	14
Research and development	3
Satellite communications	1
Scientific	11
Security systems	4
Social science	43
Sociology	2
Soil science	4
Sound recording	29
Statistics	85
Taxes	40
Technology	405
Telecommunications	12
Telegraphy	10
Telephony	14
Textile industry	36
Thermal Energy	8
Trade unions	4
Transport	865
United Nations	213
Veterinary medicine	2
Video recording	2
Water resources	42
Welding	4
Wind Energy	2
Wood processing	1
Work flow	57


System
comp., MS	Sistema
system
comp., MS	sistema
earth.sc. mech.eng.	sistema termodinámico
health.	emergencias; sistema
IMF.	régimen; plan; sistema
IT	generación del sistema
math.	el sistema


AND-
automat.	-Y
and
gen.	e; y


design
pack.	forma; tamaño; confección; presentación
patents.	construcción; fin; finalidad; destinación; objeto


Algorithm
pharma.	Algoritmo
algorithm
comp., MS	algoritmo
math.	algoritmo


optimisation
chem.	"optimación"