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本文着眼于大范围暴雨过程天气尺度系统的诊断研究。
In this paper, investigation has been made into the large area heavy rain processes in eastern China.
在对暴雨过程的湿位涡分析发现，暴雨区存在湿对称不稳定。
Through analyzing MPV during the heavy rainstorm process, it is showed that is wet symmetry instability above rainstorm area.
而中尺度低压及其特有的动力热力结构与该暴雨过程直接相关。
The mesoscale typhoon low pressure and its specific dynamical and thermodynamical structures were directly related to this heavy rainfall event.
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