Using the analyses of weather process of an heavy rainfall system, it is found that there is a mesoscale disturbance in the lower troposphere over Yangzi-Hwai valley.
通过一次江淮流域暴雨天气过程的分析，发现在对流层低层存在一种中间尺度扰动。
The second class of influence system of heavy rainfall can make the concepts of heavy rainfall system more clear and it has denotative meaning to the further study of heavy rainfall system ;
暴雨影响系统的二次分类，使暴雨系统的概念更清晰，对进一步研究暴雨系统提供了科学依据；
The structure, running, and function of the short range heavy area rainfall prediction system over the upper reaches of the Changjiang River are introduced, respectively.
介绍了长江上游流域短期强降水面雨量预报系统的结构、运行情况及功能。
With intensive detecting data, the observational characteristics of mesoscale weather system triggering heavy rainfall over the middle valleys of Changjiang River is analyzed.
利用多种加密观测资料，详细分析了长江中游一次暴雨中尺度天气系统的观测特征。
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；
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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