volatile bituminous coals
... long well 长壁 low-volatile bituminous coals 低挥发烟煤 metallic oxides 金属氧化物 ...
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volatile bituminous coals
挥发性烟煤
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Three high volatile bituminous coals were used pyrolysis with solid heat carrier to investigate the product distribution and characteristic of gas, tar and char.
以三种高挥发分烟煤为原料，对固体热载体煤热解获得的气、油、焦产物产率、组成和性质进行了考察。
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