Floods triggered by tropical cyclone Tasha have left entire towns under water and cut off many more over an area the size of France and Germany combined.
热带气旋塔莎引发的洪水将整个城镇淹没在水下，被切断道路的总面积为法国和德国面积之和。
2
It is shown that there are two regions in the cyclone, the steadily tangential flow in the spiral channel and the combined vortex flow in the centre.
Based on an analysis of the combined effects of centrifugal and electrostatic separation, a revised equilibrium-path model for the electrostatic-cyclone dust collector is established in the paper.