Accumulators	2
Acoustics	1
Agriculture	69
Animal husbandry	1
Antennas and waveguides	6
Automated equipment	17
Aviation	1
Banking	1
Business	1
Cables and cable production	2
Chemistry	92
Coal	5
Commerce	6
Communications	141
Computers	1
Construction	7
Cultural studies	7
Customs	2
Data processing	1
Demography	1
Dyalysis	1
Earth sciences	27
Economics	4
Education	5
Electric machinery	6
Electric motors	22
Electric traction	7
Electricity generation	3
Electronics	129
Energy industry	3
Environment	20
Finances	4
Fish farming pisciculture	2
Food industry	2
General	95
Government, administration and public services	4
Health care	45
Hobbies and pastimes	2
Immigration and citizenship	2
Industry	78
Information technology	74
Insurance	1
Labor law	3
Labor organization	1
Law	66
Life sciences	25
Lighting other than cinema	2
Magnetics	3
Marketing	3
Materials science	94
Mathematics	17
Measuring instruments	80
Mechanic engineering	49
Mechanics	28
Medical	383
Medical appliances	1
Metallurgy	171
Microsoft	11
Municipal planning	1
Natural resourses and wildlife conservation	2
Natural sciences	34
Nuclear physics	8
Optics branch of physics	2
Packaging	83
Patents	2
Pharmacy and pharmacology	8
Politics	6
Power lines	1
Power system protection	4
Procedural law	2
Radio	7
Rail transport	1
Religion	1
Research and development	2
Scientific	1
Social science	1
Sound recording	1
Statistics	38
Technology	255
Telecommunications	6
Telegraphy	1
Textile industry	65
Thermal Energy	1
Transport	156
Video recording	13
Wind Energy	1


scala abbr.
comp., MS	escala de dibujo; escala
construct.	escalera
earth.sc. tech.	contador de escala; contador de escalas; contador de impulsos
fin. scient.	caja
nat.sc.	escala graduada
tech.	cuadrante


in % abbr.
met.	porcentaje de reducción del área a la fractura; alargamiento de rotura