Accounting	1
Aerohydrodynamics	1
Architecture	1
Astronautics	3
Automated equipment	5
Automobiles	3
Aviation	1
Bridge construction	1
Building structures	1
Business	2
Caspian	6
Cement	1
Computer networks	2
Construction	21
Data processing	1
Drilling	2
Ecology	4
Economics	3
Electrical engineering	32
Electrochemistry	1
Electronics	21
Energy industry	13
Energy system	3
Figurative	1
Finances	1
Forestry	1
Gas processing plants	2
General	21
Idiomatic	4
Informal	5
Jargon	2
Logistics	2
Makarov	37
Mathematics	4
Mechanic engineering	2
Medical	4
Military	7
Natural resourses and wildlife conservation	2
Nautical	4
Nuclear and fusion power	1
Nuclear physics	6
Occupational health & safety	1
Oil / petroleum	2
Oil and gas	2
Oilfields	1
Production	1
Proverb	5
Quality control and standards	1
Rail transport	4
Sakhalin	3
Seismology	1
Shipbuilding	1
Slang	4
Space	4
Technology	32
Textile industry	1
Transport	8
Vulgar	2
Water resources	2
Water supply	2
Weapons and gunsmithing	1