Effect of urban heat island can produce local secondarycirculation and form regional convergence and divergence structure.
本文提出了城市次生热岛效应可导致局地次生尺度环流结构，形成区域性辐合或辐散结构。
2
Rifled or other pipe wall corrugation may change the flow from a hetero-generous to a homogeneous regime by introducing a secondarycirculation.
在有来复线的或其它的管壁皱纹的管中，由于引起副流，可能将非均质流转变为均质流。
3
The results show that the distribution of wet % Q % -vector indicates the direction and intensity of the secondarycirculation. The heavy storm rain may occur when the mesoscale circulation enhanced.