 |
| |||
| coal fuel (Alexander Demidov) | |||
| каменноугольное топливо: 6 phrases in 6 subjects |
| Automobiles | 1 |
| Combustion gas turbines | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Thermal engineering | 1 |
| Transport | 1 |
|
| |||
| coal fuel (Alexander Demidov) | |||
| каменноугольное топливо: 6 phrases in 6 subjects |
| Automobiles | 1 |
| Combustion gas turbines | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Thermal engineering | 1 |
| Transport | 1 |