 |
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| culm; stone coal | |||
| hard coal | |||
| 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 | |||
| stove coal; hard coal stonecoal; lean coal | |||
| anthracite | |||
| charcoal; charcoal black; charcoal gray | |||
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| anthracitic coals | |||
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anthracite : 24 phrases, 9 sujets |
| Charbon | 1 |
| Chimie | 4 |
| Études culturelles | 3 |
| Général | 5 |
| Industrie de l'énergie | 1 |
| Métallurgie | 7 |
| Microsoft | 1 |
| Ressources naturelles et conservation de la faune | 1 |
| Statistiques | 1 |