back extractant 反萃取剂
A solvent was used as gold extractant and a sort of compound back extract reducer was used for reduction at one step in normal temperature.
用某溶剂作为金萃取剂，用某复合反萃还原剂在常温条件下进行一步还原；将箱式混合澄清槽经改进后作为萃取器。
The quality and the yield of 10-HAD are mainly influenced by alcohol concentration, alcohol volume, back extractant water quantity, and temperature.
不同浓度、不同体积的乙醇对产率及质量有影响；不同体积的反萃取剂水对产率也有影响；不同温度对结晶有影响。
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