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氧气底吹炼铅法
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氧气底吹炼铅法
Encyclopedia
工学
铅冶金
释
process for smelting lead; QSL
氧气底吹炼铅法
在P.E.凯诺和R.舒曼已发明的连续炼铜QS法的基础上,与德国Lurgi公司进一步开发出的一种炼铅新工艺。又称QSL法。
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let some people get rich first
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letter-by-letter encoding
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letter for the publication of a book with a writer
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lettering of chart
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letter of credence
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letter string
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