以下为句子列表：
英文: Methods The extracted liquid with petroleum ether from the geochemical samples in the north of Shaanxi was spectrally analyzed by using the optimized measurement condition.
中文: 方法用优化后的条件对陕北地区化探样品中芳烃的石油醚萃取液进行了光谱分析。
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英文: The mixed solvent Consists of solvent naphtha, decalin, and petroleum ether in a certain proportion, which was used to synthesize 3-sulfo p-anisidine by using p-anisidine as raw material.
中文: 摘要用溶剂汽油、萘烷、石油醚按一定比例复配成混合型溶剂，以对茴香胺为原料，用该溶剂合成了3-磺酸基对茴香胺，产品中不含致癌物。
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英文: Volatile constituents of components A and B aquired from Skimmia lau-reola ssp. multinervia by extraction with petroleum ether was investigated byGC/MS method.
中文: 在多脉茵芋(Skimmia laureola ssp.multinervia)中获得两组挥发性成分A和B。
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