Considering the change of stream gradient, we estimated the parameter of longitudinal coefficient of diffusion in different reaches.
依据河道比降的变化情况，对不同河段的纵向扩散系数进行估值。
Stream gradient and bed sand constituent are the main factors which is influencing on river pattern formation in the boundary condition.
河道比降、床沙组成是河道边界条件中影响河型形成的最主要因素。
Thanks to the gradient, the stream of emitted photons is the same as the stream of absorbed photons.
而正是这种均匀过渡的结构使纳米晶体上放射出的光子与吸收的光子数量能保持一致。
The stream wise wall temperature gradient for the crossed rib one is lower than that for the parallel rib one.
交叉肋通道壁面温度沿流体流向的梯度要比平行肋通道的小。
The stream wise wall temperature gradient for the crossed rib one is lower than that for the parallel rib one.
交叉肋通道壁面温度沿流体流向的梯度要比平行肋通道的小。
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