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| black | |||
| mineral carbon | |||
| black diamonds | |||
| black diamond | |||
| coal The natural, rocklike, brown to black derivative of forest-type plant material, usually accumulated in peat beds and progressively compressed and indurated until it is finally altered in to graphite-like material (自然的、像石头的、棕色或黑色的森林植物原料的衍生物，通常在泥炭层积累、逐渐被压缩和硬化直到最终变成石墨状结构的材料。); fossil fuel | |||
| colliery | |||
| coal; mineral coal | |||
| anthraco- | |||
| flame coal | |||
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| coal | |||
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| coal | |||
| 煤: 7699 phrases in 96 subjects |