It is shown that the continued hail shooting process is caused by a cold vortex. 结果表明，这次连续性大范围冰雹天气过程是由冷性低涡影响产生的。
The intensification of the positive vorticity and divergence at the low levels induced the formation of the meso-scale vortex and the center of torrential rainfall. 低层正涡度和辐合作用的加强，导致中尺度低涡的形成和暴雨中心的产生。
