According to the operation condition, the entrance velocity of precipitator is confirmed by double object function weighting, and the fluid field is calculated by PHOENICS program.

根据现场旋风除尘器的运行情况，用双目标函数加权的方法，确定了除尘器入口速度，并用PHOENICS程序对流场进行了计算和分析。

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In addition, the author studies a new way of weighting subjectively and discusses the three driving modes: fuel economy mode, emission mode and natural operation mode.

作者研究了一种新的主观侧重赋权值的方法，并据此讨论了车辆的三种行驶模式：燃油经济性模式、低排放模式和正常行驶模式。

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