Low level flush water vapor condition, strong frontal zone and vapor convergence are the main course of the rainstorm.
低层充沛的水汽条件、较强的锋区和水汽辐合是此类暴雨产生的主要原因。
Combined with the analysis of physical parameters, two kinds of conceptual models of typical regional heavy rainstorm systems about strong frontal zone and warm vortex are found.
结合物理量场的分析，建立了强锋区和暖涡旋两类典型特大暴雨系统的概念模型。
The physical analyses show that there was a strong energy frontal zone between the high energy center in Tibet Plateau and the low energy center to the east of Sichuan Basin.
四川盆地处于高原高能量带与盆地以东低能量带之间的能量锋区。
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