oil content in waste water
oil content in waste water
废水含油量
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Organic solvents, such as petroleum ether and gasoline, are used as extracting agents to measure oil content in oilfield waste water and the normal curves of reference oil are plotted.
油田污水中含油量的测定采用石油醚、汽油等有机溶剂作萃取剂，绘制标准油的标准曲线。
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