| |||
pit coal | |||
albertite | |||
pitch coal | |||
apple coal; asphalt coal; asphaltic coal; bituminite; bituminous coal; oil coal; rich coal |
沥青 煤 : 162 phrases in 10 subjects |
Agriculture | 1 |
Architecture | 6 |
Chemistry | 1 |
Construction | 2 |
Electronics | 1 |
General | 4 |
Metallurgy | 3 |
Oil / petroleum | 21 |
Rail transport | 1 |
Technology | 122 |