矢量辐合带对暴雨有指示意义，尤其是在天气影响系统不明显的情况下，进行Q矢量分析更为有益。
Q vector convergence band has indicative significance for the heavy rain. Specially, Q vector analysis is more beneficial when the weather influence system is not obvious.
在不同天气系统影响下，其预报性能也有所不同。
Its forecast performance various with the different weather system.
在不同天气系统影响下，其预报性能也有所不同。
Its forecast performance various with the different weather system.
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