And unique sand-settling pipe is also designed to prevent the sand from plugging the discharging pipe as fluid stops flowing.
最后为防止液体停止流动导致砂堵排出管，设计了结构独特的沉砂管。
Newton fluid's flowing in special pipe is analysed, it is gained that some factors affect the friction coefficient of flowing fluid in special pipe.
主要通过对流体流过非圆形直管的流动分析，得到影响非圆形直管摩擦系数的因素。
The calculations of the laminar velocity of a fluid flowing along a flat plate as well as at the entrance of a circular pipe were given as examples to illustrate the correctness of this method.
以沿半无限平板和水平圆管进口区中层流速度分布计算为例，证明了计算方法是正确的。
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