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关注：1
2013-05-23 12:21
求翻译：However, advances in BOF steelmaking technology, such as the introduction of top and bottom blowing as well as combined blowing–stirring and foamy slag procedures, meant that improved refractories were needed.是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
However, advances in BOF steelmaking technology, such as the introduction of top and bottom blowing as well as combined blowing–stirring and foamy slag procedures, meant that improved refractories were needed.
问题补充： |
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2013-05-23 12:21:38
然而，在转炉炼钢技术的进步，如引进吹以及结合吹搅拌，泡沫渣过程的顶部和底部，这意味着需要改进的耐火材料。
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2013-05-23 12:23:18
但是,进步和bof一炼钢的技术,如采用顶部和底部吹吹,惊心动魄的泡沫状渣程序,这意味着需要提高耐火材料。
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2013-05-23 12:24:58
然而，前进在BOF制钢技术，例如吹并且联合的吹stirring和泡沫似的炉渣规程的上面和底部的介绍，意味被改进的refractories是需要的。
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2013-05-23 12:26:38
然而，等的顶部和底部吹泡沫渣和联合的 blowing–stirring 程序，引入转炉炼钢技术的进步意味着需要改进的耐火材料。
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2013-05-23 12:28:18
然而，推进在文件开始中 steelmaking 技术，例如最高和最后吹以及联合打击轰动和起泡沫的矿渣程序的介绍，意味着被改善 refractories 需要。
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