Electrode automatic control is a key technique in arc furnace steel making.
电极调节是电弧炉炼钢中的关键技术。
To take away the refining part of the steel making cycle off an electric arc furnace, which is discussed elsewhere, is an excellent start.
把炼钢周期中的精炼阶段从电弧炉中移走（这个问题将在别处加以讨论），是一个良好的开端。
The electric arc furnace steel-making productivity has gained rapid progress in the recent years.
近几年来， 电弧炉炼钢生产率有较大的提高。
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