When the varieties of R range from 0.63 to 1.08, it doesn't affect remarkably on even dimensionless temperature difference and velocity in workaround.
当R在（0.63~1.08）范围内变化时，工作区平均无因次温差、风速没有显著变化。
The computation results showed that the effect of density differences when velocity of flow was small was obvious to the boundary of laminar flow in the elevation difference pipeline.
结果表明，在大落差管道，流速不大的情况下，密度差对层流边界层影响比较明显。
The results show that when the porous media model is not used, the calculated escape velocity of bubbles is larger, and the difference becomes larger with increasing the gas flow rate.
结果表明，不采用多孔介质模型计算的气泡的逃逸速度比采用多孔介质模型大，且随着底吹流量的增加，偏差加大。
When the forward slip difference is large, the influence of velocity difference is small and workpiece is easily bent…
前滑差小时，速差起主导作用，轧件易往小辊或慢辊侧弯。
When the forward slip difference is large, the influence of velocity difference is small and workpiece is easily bent…
前滑差小时，速差起主导作用，轧件易往小辊或慢辊侧弯。
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