... separation preconcentration 富集分离 ; 分离富集 precipitation preconcentration 沉淀富集 Microcolumn preconcentration 微柱预富集 ...
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黄铁绢英岩化为金的沉淀富集提供了适宜的物理化学环境。
Beresitization furnishes the adequate physical and chemical environment for gold precipitation.
研究表明，铀在相对还原条件下迁移，而在相对氧化条件下沉淀富集。
It is indicated that uranium was moved out in the relative reducing condition and enriched precipitation in the relative oxidizing condition.
指出煌斑岩具有较强的还原性能，是金沉淀富集的良好地球化学屏障。
Having a large reducing capacity, the lamprophyre is the best geochemical barrier for thedeposition and concentration of gold.
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