 |
| coal-burning: 61 phrases in 17 subjects |
| Agriculture | 1 |
| Automobiles | 1 |
| Combustion gas turbines | 1 |
| Construction | 1 |
| Energy industry | 6 |
| Gas processing plants | 1 |
| General | 5 |
| Geology | 7 |
| Makarov | 7 |
| Mechanic engineering | 2 |
| Metallurgy | 2 |
| Military | 1 |
| Mining | 2 |
| Nautical | 4 |
| Rail transport | 6 |
| Technology | 7 |
| Thermal engineering | 7 |