The experimental results showed that the extraction rate and mass transfer flux increased with the field strength increasing.
实验结果表明，电场强度的增大可以有效地提高溶质的萃取率，传质通量也随之增大；
The effect of nitrogen sparging on the mass transfer rate in the extraction of copper from aqueous solution by a kerosene solution of naphthenic acids was studied.
研究了氮注射对环烷酸萃取溶液中铜离子的质量转移速率的影响。
The dried extraction yield and transfer rate of matrine and oxymatrine were adopted as markers in the orthogonality test to optimize the water extraction and purification procedure of herbs;
采用正交试验法，以干浸膏得率和苦参碱、氧化苦参碱转移率为评价指标，优选水提取药材的提取工艺和精制工艺；
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