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预还原
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预还原
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熔融还原炼铁
释
prereduction
预还原
还原熔炼前,在一定的温度下,用煤或还原性气体,使矿石、精矿或球团矿中的有关组分部分或大部分还原成金属的冶金过程。
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potentiometric determination of pH of solution
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potentiometric titration
potentiometric titration curve
potentiometric titrator
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pot experiment
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