 |
| |||
| culm; stone coal | |||
| stove coal; hard coal stonecoal; lean coal | |||
| hard coal | |||
| anthracite | |||
| 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 | |||
| |||
| anthracitic coals | |||
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anthracite : 24 短语, 9 学科 |
| 一般 | 5 |
| 冶金 | 7 |
| 化学 | 4 |
| 微软 | 1 |
| 文化学习 | 3 |
| 煤炭 | 1 |
| 统计数据 | 1 |
| 能源行业 | 1 |
| 自然资源和野生动物保护 | 1 |