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| electric heater: 121 phrases in 34 subjects |
| Aerohydrodynamics | 2 |
| Astronautics | 3 |
| Automated equipment | 1 |
| Automobiles | 3 |
| British usage, not spelling | 1 |
| Caspian | 1 |
| Construction | 11 |
| Electric machinery | 1 |
| Electrical engineering | 8 |
| Electronics | 8 |
| Energy industry | 3 |
| Gyroscopes | 1 |
| Heat exchangers | 1 |
| Heat transfer | 1 |
| Makarov | 2 |
| Medical | 1 |
| Metallurgy | 2 |
| Molikpaq | 4 |
| Oil / petroleum | 3 |
| Oil and gas | 11 |
| Oil and gas technology | 6 |
| Oilfields | 2 |
| Oils and lubricants | 2 |
| Polygraphy | 1 |
| Polymers | 1 |
| Pumps | 2 |
| Rail transport | 1 |
| Refrigeration | 2 |
| Sakhalin | 2 |
| Sakhalin R | 1 |
| Technology | 25 |
| Tengiz | 1 |
| Thermal engineering | 4 |
| Weapons of mass destruction | 3 |