The results showed that there was a mesoscale vortex tube along the mesoscale shear line on the middle low troposphere, and its altitude varied in a wave shape.
发现沿切变线走向有一条中尺度涡管，位于对流层中低层，高度呈波状起伏。
The forming and maintaining of K-H instability was an important reason of causing vortex on the shear line maintain, strengthen, and causing rainstorm.
不稳定的形成和维持，是导致中尺度切变线上小尺度涡旋维持、加强，并产生强风暴雨的重要原因。
The heavy rainfall is dominated by a mesoscale warm shear line, having a closed relationship with a mesoscale system composed by mesoscale shear line, thunderstorm high and mesoscale vortex;
这次强降水与中尺度切变线、雷暴高压和中尺度气旋等中尺度系统关系密切，为一次中尺度暖式切变线暴雨过程；
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