针对低渗透地层垂直裂缝井的渗流过程，考虑了启动压力梯度和介质变形系数的影响，建立了三线流模型。
In view of seepage process in vertical fracture well in low permeability reservoir, considering kickoff pressure gradient and media deformation coefficient, bilinear flow model is established.
建立了同流环境中沿射流轴线的中心线稀释的理论方程。
The theoretical equation of the centerlinedilution along the axis of jets in coflow ambient is developed.
然而，一些材料比其它材料更容易用这种方式纺成线，因为如果分子不粘在一起，液体流就会断裂。
Some materials, however, are easier to spin in this way than others, for if the molecules do not stick together, the liquid stream will break up.
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