Methods:The best technology of purification was datermined by the physicochemical and pharmaceutical evaluation of astragaloside concentrations and swelling ratio of mouse ears pain inhibition.

方法：以黄芪甲苷含量、小鼠耳廓肿胀率、小鼠热板疼痛抑制率为指标，通过药化学和药效学的综合评价，优选最佳纯化工艺。

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The result indicated that the purification methods presented could result in high recovery ratio, high purity, mild oxidation condition, and easy control of test in contrasted with other ones.

结果显示，该提纯方法比其它方法回收率高，纯度高，氧化条件柔和，实验过程易于控制。

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Therefore, the static mixer with large blade area had the highest mixing ratio of the process gas and air in the natural gas purification process.

因此，叶片面积大的静态混合器对天然气净化处理工艺中的过程气与空气的混合率最高。

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