Accumulators	2
Agriculture	286
Agronomy	1
Alternative dispute resolution	2
American usage, not spelling	3
Analytical chemistry	2
Antennas and waveguides	1
Automated equipment	4
Automobiles	4
Aviation	2
Ball bearings	4
Beekeeping	1
Biology	10
British usage, not spelling	3
Business	11
Chemistry	137
Coal	24
Commerce	1
Communications	15
Computers	3
Construction	251
Cooking	1
Cultural studies	8
Drives	8
Dyes	1
Earth sciences	45
Economics	24
Electronics	33
Emergency medical care	2
Employment	1
Energy industry	16
Engines	2
Environment	81
Equestrian sports	1
Figurative	6
Fish farming pisciculture	2
Food industry	28
Foreign trade	7
Forestry	9
General	265
Geomechanics	3
Health care	7
Hobbies and pastimes	1
Hydrology	2
Immigration and citizenship	10
Industry	79
Informal	2
Information technology	7
Judo	2
Labor law	2
Leather	1
Life sciences	31
Materials science	22
Measuring instruments	9
Mechanic engineering	30
Medical	60
Medical appliances	7
Metallurgy	86
Meteorology	6
Microelectronics	12
Mineral products	1
Mining	85
Municipal planning	10
Natural resourses and wildlife conservation	46
Natural sciences	26
Nuclear physics	17
Oil / petroleum	3
Oil and gas	2
Oils and lubricants	4
Optics branch of physics	5
Packaging	5
Patents	2
Pharmacology	1
Pharmacy and pharmacology	7
Photography	1
Physics	35
Phytophathology	2
Plastics	1
Platform diving	2
Polygraphy	7
Polymers	1
Quality control and standards	1
Racing and motorsport	1
Refrigeration	22
Resins	1
Sample preparation	2
Scuba diving	1
Skiing	4
Social science	1
Sports	2
Technology	187
Telecommunications	1
Textile industry	33
Transformers	4
Transport	114
Weapons and gunsmithing	2
Zootechnics	6