preliminary reduction process
... 预还原团块 prereducedbriquette 预还原法 preliminary reduction process ; prereductionmethod 预还原球团 reduced pellet ...
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采用微波消解-氢化物发生-原子荧光光谱法，用L -半胱氨酸预还原法，对染料中砷和锑进行了分析，讨论并确定了实验最佳测定条件。
The method of determination, after L-cysteine pre-reduction, with microwave digestion-hydride generation-atomic fluorescence spectrometry was used to analyze the arsenic and stibium in dyestuffs.
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