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| heat exchange in blast furnace (【技】高炉风口区燃烧生成的炽热煤气自下而上在下降的炉料中穿行，并通过对流、传导和辐射的方式将热量传给炉料，促进高炉内还原、造渣顺利进行的热量转移过程。) | |||
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