 |
| |||
| steam-to-water preheater | |||
| steam-to-water heating element | |||
| паровой подогреватель воды: 5 phrases in 3 subjects |
| Energy industry | 1 |
| Nautical | 3 |
| Thermal engineering | 1 |
|
| |||
| steam-to-water preheater | |||
| steam-to-water heating element | |||
| паровой подогреватель воды: 5 phrases in 3 subjects |
| Energy industry | 1 |
| Nautical | 3 |
| Thermal engineering | 1 |