在东风急流的入口区和出口区存在两个近于相反的垂直环流，它们与降水分布密切有关。
There are two opposite vertical circulations in the entrance region and exit region, which is closely associated with the distribution of rainfall.
河口宽度与坡度的变化会改变环流结构和盐度、悬沙分布；
Variations of estuary width and slope would change the circulation structure and distributions of salinity and suspended sediment.
分析结果表明，经向环流圈与大气冷热源的分布密切相关。
It is discovered that, the meridional cell is closely associated with the distribution of the heat sources and sinks.
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