 |
| valve control: 1401 phrase in 72 subjects |
| Aerohydrodynamics | 10 |
| Agriculture | 1 |
| Aluminium industry | 1 |
| Apollo-Soyuz | 6 |
| Armored vehicles | 11 |
| Astronautics | 29 |
| Automated equipment | 50 |
| Automobiles | 61 |
| Aviation | 21 |
| Building structures | 1 |
| Caspian | 2 |
| Combustion gas turbines | 1 |
| Construction | 18 |
| Drilling | 4 |
| Electrical engineering | 9 |
| Electronics | 15 |
| Energy industry | 37 |
| Firefighting and fire-control systems | 3 |
| General | 13 |
| Heat transfer | 3 |
| Hydraulic engineering | 1 |
| Hydraulics | 4 |
| Hydroelectric power stations | 1 |
| Informal | 1 |
| Jargon | 1 |
| Karachaganak | 2 |
| Machine components | 5 |
| Machinery and mechanisms | 2 |
| Makarov | 7 |
| Mathematics | 1 |
| Mechanic engineering | 4 |
| Mechanics | 9 |
| Medical | 3 |
| Metallurgy | 5 |
| Military | 6 |
| Mining | 2 |
| Molikpaq | 9 |
| Natural resourses and wildlife conservation | 2 |
| Nautical | 23 |
| Nuclear and fusion power | 2 |
| Oil / petroleum | 26 |
| Oil and gas | 26 |
| Oil and gas technology | 18 |
| Oil processing plants | 2 |
| Oilfields | 4 |
| Plastics | 1 |
| Polygraphy | 2 |
| Polymers | 2 |
| Production | 8 |
| Public utilities | 1 |
| Quantum electronics | 1 |
| Rail transport | 8 |
| Refrigeration | 7 |
| Roll stock | 1 |
| Sakhalin | 24 |
| Sakhalin A | 2 |
| Sakhalin R | 2 |
| Sakhalin S | 1 |
| Shipbuilding | 3 |
| Silicate industry | 2 |
| Solar power | 1 |
| Submarines | 1 |
| Technology | 747 |
| Tengiz | 4 |
| Textile industry | 1 |
| Thermal engineering | 34 |
| Torpedoes | 2 |
| Transport | 77 |
| Turbines | 1 |
| Valves | 3 |
| Weapons of mass destruction | 2 |
| Wood processing | 1 |