And recovery rate of naphthoquinones was 81% when extracting twice. Conclusion The proposed homogenate extraction method needs less extracting time， less extraction solvent, and less energy consumption， so it is a method for extracting naphthoquinones from A. euchroma in high efficiency.
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high efficiency in class 高效率课堂
The correct use of action plan will result in high efficiency and convenient for sales activity.
使每个学员能充分使用活动计划高效方便的运用到销售活动中。
The configuration inversion can offer the desired enantiomer in high efficiency, but with certain limitation in application.
构型反转能够直接得到所需要的对映体，效率高，但其应用局限性较大；
CBN grinding wheels have wide application in high efficiency and high precision grinding because of their excellent properties.
CBN砂轮以其优异的性能在高效、高精度磨削中具有广阔的应用前景。
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