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| 留钢法操作 (Slag foaming is usually carried out once a flat bath is achieved. However, with hot heel operations it is possible to start slag foaming much sooner. 在一般情况下，熔池一旦形成，即开始造泡沫渣。但在采用留钢法操作时，可更早开始造泡沫渣。) | |||
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