由于污染物在水流中的扩散迁移过程受水温、局部流速与流向、河道形状等因素的影响。
The movement and diffusion process of pollutants in current of water are affected by water temperature, local flow velocity and direction, stream shape, and so on.
本文提出了一种能同时测量血管平均流速和局部流速的改进伪随机码互相关直接提取方法。
This paper put forward an improved direct extraction method with pseudorandom cross correlation function, by which, the average and local velocity in blood vessel are measured simultaneously.
如果筛管和衬管发生了部分堵塞，产液流体则会转而流向设备中更开阔的地区，从而导致局部流速的增大。
Partial plugging of well screens and liners redirects the flow of produced fluids to open areas of the hardware with a resulting increase in the local inflow velocity.
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