低浓度的煤炭，如亚煤烟煤和褐煤等，其含水量最高可达50%。

Less dense types, such as sub-bituminous and lignite coal, can contain up to 50% water.

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低浓度的煤炭，如亚煤烟煤和褐煤等，其含水量最高可达50%。

Less dense types, such as sub-bituminous and lignite coal, can contain up to 50% water.

youdao