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| lignite Coal of relatively recent origin consisting of accumulated layers of partially decomposed vegetation, intermediate between peat and bituminous coal; often contains patterns from the wood from which it formed | |||
| wood coal | |||
| lignite | |||
| brown coal | |||
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lignito : 57 短语, 13 学科 |
| 一般 | 1 |
| 化学 | 5 |
| 地质学 | 1 |
| 机械工程 | 1 |
| 煤炭 | 20 |
| 环境 | 5 |
| 生命科学 | 2 |
| 电子产品 | 1 |
| 石油/石油 | 2 |
| 统计数据 | 3 |
| 能源行业 | 10 |
| 行业 | 2 |
| 钻孔 | 4 |