The paper discusses the migration condition of POre particle under hydrodynamism emphatically, and analyzes the influences of different types driving fluid to migration according to experiments.
本文着重讨论了水动力作用下孔隙微粒运移条件，结合室内实验分析了不同类型的驱动流体对运移产生的影响。
The driving force of primary migration is mainly abnormal high pressure and that of secondary migration is buoyance and fluid potential difference.
初次运移的动力主要是异常高压，二次运移的动力主要是浮力和流体势差。
Motor having electronic commutation, especially for driving fluid discharge device, particular in hair-dryer mounted such motor.
带有电子换向的电动马达，特别是用于驱动—排出流体的机器，尤其是装有这样马达的头发干燥器。
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