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Terms for subject Coal containing coal | all forms | exact matches only
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bituminous coal软煤
bituminous coal烟煤
boghead ite coal泥〔沼,藻,烟〕煤
caking coal黏结
coal-sensing probe底板留煤的核探测器
coking coal焦煤
coking coal炼焦〔焦性〕煤
graded coal分级〔筛选〕的煤
hydrogenous coal含水量高的煤
nut coal焦丁
pit coal软煤
pit coal烟煤
soft coal烟煤