 |
| feed heater: 52 phrases in 16 subjects |
| Aluminium industry | 1 |
| Aviation | 1 |
| Cement | 1 |
| Construction | 3 |
| Energy industry | 7 |
| Firefighting and fire-control systems | 2 |
| Karachaganak | 3 |
| Mechanic engineering | 7 |
| Nautical | 5 |
| Oil / petroleum | 1 |
| Oil and gas | 6 |
| Rail transport | 3 |
| Shipbuilding | 2 |
| Technology | 7 |
| Thermal engineering | 2 |
| Transport | 1 |