 |
| heating boiler: 117 phrases in 30 subjects |
| Astronautics | 1 |
| Caspian | 2 |
| Cement | 2 |
| Combustion gas turbines | 1 |
| Construction | 6 |
| Ecology | 1 |
| Electrical engineering | 1 |
| Electronics | 2 |
| Energy industry | 33 |
| Energy system | 1 |
| Facilities | 1 |
| General | 10 |
| Makarov | 3 |
| Mechanic engineering | 2 |
| Metallurgy | 4 |
| Natural resourses and wildlife conservation | 1 |
| Nautical | 1 |
| Oil / petroleum | 4 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |
| Oilfields | 2 |
| Pulp and paper industry | 1 |
| Rail transport | 4 |
| Sakhalin | 8 |
| Shipbuilding | 2 |
| Technology | 12 |
| Tengiz | 3 |
| Textile industry | 1 |
| Thermal engineering | 3 |
| Trade classification | 2 |