主题：【求助】英语翻译一段句子

Microwave-assisted extraction (MAE) was used to extract the organic acid from eucalytus. Orthogonal design method was used in this study to evaluate the effects of extraction solvents, microwave power and irradiation time, to find out the best extraction condition. Extraction samples were analyzed with a capillary electrophoresis system to calculate the extraction yield. When extracting with 200ml of anhydrous ether for 6 minutes，assisted by medium-power microwave，the extraction process is optimal and the average recovery is more than 90% with the RSD is not more than 1.24．Compared with reflux extraction and soaked by organic solvent, better extraction rate was observed for the microwave-asisted extraction. The proposed extraction method was applied to extract eucalytus from different places (Guangzhou, Guangxi, Zhaoqing, Yunnan). The results showed that organic acid contents in eucalytus from Zhaoqing were the highest among them. 
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