 |
| |||
| culm; stone coal | |||
| hard coal | |||
| stove coal; hard coal stonecoal; lean coal | |||
| charcoal; charcoal black; charcoal gray | |||
| black coal; black coal A natural black graphitelike material used as a fuel, formed from fossilized plants and consisting of amorphous carbon with various organic and some inorganic compounds | |||
| anthracite | |||
| |||
| anthracitic coals | |||
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anthracite : 24 do fraz, 9 tematyki |
| Chemia | 4 |
| Hutnictwo | 7 |
| Kulturoznawstwo | 3 |
| Microsoftu | 1 |
| Pospolicie | 5 |
| Przemysł energetyczny | 1 |
| Statystyka | 1 |
| Węgiel | 1 |
| Zasoby naturalne i ochrona dzikiej przyrody | 1 |