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| dust rate (【技】高炉炼铁生产中，随同煤气带出的炉尘量与产铁量的质量比值，即单位生铁炉尘量，简称炉尘量，一般以质量单位 kg 表示。例如灰铁比为 30kg, 即冶炼一吨生铁的炉尘量为 30kg。) | |||
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