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单词 θ209351
释义
society > occupation and work > industry > working with specific materials > working with metal > [noun] > refining > refining pig-iron (2)
pig-boiling1856

a stage in the puddling of unrefined pig iron, which is characterized by the rapid bubbling of gas from the molten metal.

pig-washing1887

the refining of molten pig iron by treatment with molten iron oxide, etc.

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更新时间:2024/12/24 21:55:59