... {冶} fettling 补炉材料 fettling; fettle material; 补炉机 patching machine; ...
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By means of crushing and conditioning the size ratio, fettle material and mud powder to plug tap-hole for electric refining furnace use were developed.
通过加工破碎，调整粒度及配比等工艺参数，研制开发出铁合金精炼炉补炉料及堵眼粉。
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