The results show that, the property, the concentration and the injected volume of the surfactant influence the development result of the combined flooding on a great degree;

研究表明：表面活性剂性质、浓度、注入总量等在很大程度上影响着复合驱的开发效果；

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No less than 3 colors and 9 shades are combined in bold graphic patterns and gradients that wrap seamlessly around the walls and floor seemingly flooding the space.

采用了不少于3种颜色和9种色度的渐变色瓷砖，在墙壁上塑造出醒目却又完美渐变，和谐覆盖空间的视觉效果。

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Combined chemical flooding agent is composed of surface active agent, polymer and alkali.

化学复合驱的驱剂主要是表面活性剂、聚合物和碱。

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South Down MP Margaret Ritchie said the failure of two water pumps, combined with heavy rain led to the flooding.

BBC: Downpatrick flooding: Clean-up operation under way

"The MCS recognises that Combined Sewer Overflows (CSO) are necessary to avoid sewage flooding roads or people's houses, and that diffuse pollution is an entrenched and difficult problem, " Mr Bell said.

BBC: NEWS | UK | Heavy rains 'pose bathing risk'