以下为句子列表：
英文: 280KA aluminum smelting system is a large sized prebaking electrolytic tank developed and researched by our country.The whole system makes the control by means of centralized management and deconcentrated control.Lt has the features of hight production an
中文: 280KA槽铝电解系列是我国自行开发研制的大型预焙电解槽，全系统采用计算机集中管理分散控制的方式进行控制，具有高产、高效、低投资、低能耗、低污染等特点，被国家列为高技术产业化示范工程。
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英文: A electric resistance furnace, improves the thermal efficiency of the melting process.
中文: 这种电阻式熔炉提高了熔化过程中的热效率。
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英文: A kind of stainless steel flux-cored wire has been successfully developed , based on acid slag type system,by adding a bit of oxides and trace of deoxidizer ,adjusting the fluidity of melting slag to increase shielding of the back weld.
中文: 在酸性渣系的基础上，通过添加少量氧化物，调整熔渣的流动性，并加入微量的强脱氧剂，以增强背面焊缝的保护，研制成功一种背面不充氩的不锈钢打底单面焊双面成形专用药芯焊丝。
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英文: A metallurgical coating process in which iron or steel is immersed in a powder of another metal, such as zinc, chromium, or aluminum, and heated to a temperature below the melting point of either.
中文: 渗碳处理一种冶金镀膜工序，在此工序中把钢或铁浸入另一种金属如锌、铬或铝的粉剂里，并加热至这一金属的熔点温度以下
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英文: 【Abstract】 This article narrated the high-pressured frequency changer in iron-smelting dust removal system transformation analysis as well as the economic efficiency analysis.
中文: 本文讲述了高压变频器在炼铁除尘系统中的改造分析以及经济效益分析。
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