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| rake-off (炉渣: Next the furnace is tilted and the slag raked off into the ladle on the left of the diagram； it is replaced by a slag, composed of lime, fluorspar and sometimes carbon. 接着，将炉子倾斜，将炉渣扒除到图中左侧的渣罐中，然后再造由石灰、萤石，有时含有碳的新渣代替。) | |||
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