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1.The rolling mill uses this type of ductile iron roll to produce steel products.
轧钢厂使用这种可锻铸铁辊来生产钢铁产品。
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2. The engineer designed the ductile iron roll to be more efficient and durable.
工程师设计了这种可锻铸铁辊，使其更加高效和耐用。
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3.The ductile iron roll was used in the manufacturing process to ensure uniformity in the finished product.
在制造过程中使用了这种可锻铸铁辊，以确保成品的均匀性。