The wind speed and its gradient varied with a fan outlet area change at a constant flux.
在相同流量下，改变风机出风口的大小，可以得到不同的出口风速和梯度。
2
The model indicates that the economic spread flux of central city to satellite city is in proportion to the capacity of traffic passages and industrial gradient between them.
模型表明主城对卫星城市的经济扩散通量与其间交通通道的通过能力及两城市间的产业梯度呈正比。
3
Similar technique is applicable to calculation of physical quantities, such as gradient, advection and flux.