Sometimes they'd also add ferrous oxide to the mix.
有时候,他们会在混合物中加入氧化亚铁。
Earthenware made from clay containing a large amount of ferrous oxide, giving it a red color.
一种陶器,由含有大量的氧化铁的陶土制成,让它呈现红色。
The ferrous oxide and carbon make slag foaming, and zinc and lead enter the secondary dust after reduction.
压块加入后,压块中的铁和碳通过反应参与了泡沫渣的生成; 压块中的锌和铅被快速还原,进入二次粉尘。
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