Accounting	155
Accumulators	18
Acoustics	1
Agriculture	120
Alcohol distilling	2
Analytical chemistry	411
Animal husbandry	11
Antennas and waveguides	129
Architecture	8
Astronautics	6
Automated equipment	29
Automatic control	87
Banking	14
Biochemistry	2
Brewery	1
Building materials	8
Building structures	52
Business	20
Cables and cable production	28
Canada	39
Cement	1
Ceramics	5
Chemical fibers	1
Chemistry	895
Coal	1
Commerce	69
Communications	122
Computer networks	18
Computers	10
Construction	3854
Corporate governance	1
Criminal law	75
Customs	32
Data processing	2
Demography	8
Dyes	6
Earth sciences	34
Ecology	21
Economics	601
Education	166
Electric machinery	28
Electric motors	78
Electric traction	95
Electrical engineering	38
Electricity generation	157
Electrochemistry	26
Electronics	462
Employment	5
Energy industry	87
Engineering	26
English	1
Environment	551
European Union	26
Explosives and Explosive Ordnance Disposal	6
Finances	643
Fish farming pisciculture	55
Food industry	76
Forestry	155
Foundation engineering	1
General	790
Geography	48
Geology	7
Glass production	14
Government, administration and public services	21
Health care	169
Hobbies and pastimes	5
Human rights activism	95
Hydraulic engineering	13
Hydrology	1
Immigration and citizenship	144
Industry	21
Information technology	107
Insurance	46
International law	16
International trade	19
Investment	12
Isolation	49
Labor law	11
Labor organization	5
Latin American	1
Law	506
Life sciences	76
Lighting other than cinema	68
Machinery and mechanisms	12
Magnetics	59
Mammals	2
Marketing	19
Materials science	8
Mathematics	437
Mechanic engineering	22
Mechanics	17
Medical	106
Melioration	1
Metallurgy	25
Metrology	16
Microsoft	1590
Mineral products	8
Mineralogy	5
Mining	6
Municipal planning	4
Natural resourses and wildlife conservation	9
Natural sciences	33
Nuclear and fusion power	1
Nuclear physics	96
Obsolete / dated	80
Oil / petroleum	17
Paint, varnish and lacquer	10
Patents	32
Pharmacology	16
Pharmacy and pharmacology	29
Photography	8
Physical sciences	4
Physics	41
Piezoelectric crystals	33
Plastics	12
Plumbing	7
Politics	192
Power electronics	20
Power lines	66
Power system protection	70
Printed circuit boards	1
Private international law	4
Procedural law	48
Public relations	1
Pulp and paper industry	6
Radio	142
Radiobiology	23
Radiology	79
Rail transport	76
Reinforced concrete	1
Reliability	60
Religion	3
Research and development	27
Resins	2
Risk Management	6
Road works	5
Satellite communications	10
Scientific	5
Security systems	10
Semiconductors	26
Social science	76
Sociology	9
Sound recording	75
Statistics	48
Sugar production	4
Superconductivity	29
Surveying	12
Taxes	31
Technology	32
Telecommunications	106
Telegraphy	93
Telephony	33
Thermal Energy	89
Thermal engineering	1
Tools	2
Trade unions	4
Transformers	29
Transport	459
Ultrasound	8
United Nations	47
Vacuum tubes	95
Ventilation	18
Video recording	18
Water supply	19
Welding	22
Wind Energy	6
Wiring	1
Wood processing	1
Work flow	8


exploitation
gen.	gospodarstwo
agric. fish.farm.	gospodarstwo akwakultury
build.mat.	wydobywanie; wydobycie
construct.	opracowanie; wykonanie
forestr.	wyrąb; pozyskiwanie drewna
immigr.	wykorzystywanie