 |
| tube heater: 45 phrases in 18 subjects |
| Armored vehicles | 1 |
| Electronics | 2 |
| Energy industry | 3 |
| Heat exchangers | 1 |
| Makarov | 1 |
| Medical appliances | 1 |
| Nautical | 5 |
| Nuclear and fusion power | 1 |
| Oil / petroleum | 2 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |
| Oilfields | 2 |
| Physics | 3 |
| Rail transport | 1 |
| Shipbuilding | 1 |
| Silicate industry | 2 |
| Technology | 11 |
| Thermal engineering | 5 |