The lead paste is then smelted in a blast furnace. Impurities can be skimmed off.
铅团在鼓风炉中被溶解. 杂质就能被掠去了.
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Ores from the old mine are already smelted, but those from the new mine are not.
旧宝藏的矿石已经制炼过, 新宝藏的矿石则否.
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The steel can be smelted in arc furnace, or arc furnace + out-of-furnace refining process.
钢可采用电弧炉冶炼, 亦可采用电弧炉+炉外精炼冶炼方法.
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分析了熔炼电炉钢制造的铝型材热挤压模的失效原因及影响因素.
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根据当前的铝价, 美林相信没有冶炼企业能够盈利.
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电积到钢棉上的金银泥用化学方法进行分离,金泥经熔炼后得合质金,银泥熔炼后可得98%的银锭。
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