raffinate

詳細解釋：

raf.fi.nate

n.（名詞）
The portion of an original liquid that remains after other components have been dissolved by a solvent.
殘液：某種液體某些成分被分解劑分解後餘下的部分

來源：
French raffiner [to refine] * see raffinose
法文 raffiner [提煉] *參見 raffinose
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