本文引入临界进口位置的概念，导出了板式油水分离器出口水中含油浓度的直接计算方法。
The direct calculating method about the concentration of oil in outlet stream of multi-plate oil-water separator is derived by introducing the concept of critical inlet position.
加工含油砂会产生高浓度的温室气体，还会产生有毒废料，从而造成环境风险。
Processing tar sands produces a high concentration of greenhouse gasses and can generate toxic waste products that pose an environmental risk.
研究结果表明，泥质砂岩薄膜电位与岩石阳离子交换容量、含油气饱和度、接触溶液浓度差密切相关。
The membrane potential of shaly sand was influenced by the cation exchange capacity, hydrocarbon saturation and concentration difference of the contacted solutions.
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