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1.The ferro-alloy furnace is used to melt and cast iron alloys.
铁合金炉用于熔化和铸造铁合金。
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2.The engineer designed the ferro-alloy furnace with a high efficiency.
工程师设计了一台效率高的铁合金炉。
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3.The ferro-alloy furnace was used in the manufacturing of steel products.
铁合金炉被用于制造钢铁产品。