 |
| heating system: 627 phrases in 55 subjects |
| Aerohydrodynamics | 2 |
| Architecture | 2 |
| Armored vehicles | 2 |
| Astronautics | 13 |
| Automobiles | 3 |
| Aviation | 4 |
| Building materials | 1 |
| Cement | 1 |
| Construction | 169 |
| Drilling | 3 |
| Ecology | 7 |
| Education | 2 |
| Electrical engineering | 4 |
| Electrochemistry | 1 |
| Electronics | 33 |
| Energy industry | 90 |
| Firefighting and fire-control systems | 2 |
| Forestry | 2 |
| General | 19 |
| Heat transfer | 2 |
| Heating | 10 |
| Karachaganak | 1 |
| Makarov | 13 |
| Mathematics | 1 |
| Medical | 1 |
| Military | 8 |
| Missiles | 1 |
| Nautical | 9 |
| Nuclear and fusion power | 8 |
| Nuclear physics | 4 |
| Oil / petroleum | 2 |
| Oil and gas | 5 |
| Oil and gas technology | 1 |
| Oilfields | 2 |
| Pharmacology | 2 |
| Pipelines | 3 |
| Production | 1 |
| Programming | 1 |
| Public utilities | 2 |
| Refrigeration | 14 |
| Road works | 1 |
| Sakhalin | 6 |
| Sakhalin A | 1 |
| Sakhalin R | 1 |
| Security systems | 1 |
| Silicate industry | 2 |
| Solar power | 21 |
| Technology | 81 |
| Tengiz | 1 |
| Textile industry | 3 |
| Thermal engineering | 48 |
| Tobacco industry | 1 |
| Transport | 4 |
| Ventilation | 1 |
| Weapons of mass destruction | 4 |