First, a recursive algorithm estimating conditional mode was employed to generate a set of uncertain parameter vector samples which lead to instability or unacceptable performance of systems.
首先采用了一种递归的估计条件众数算法来产生一组使得系统不稳定或性能不可接受的不确定参数向量样本。
The analysis shows that conditional symmetric instability might be the unstable mechanism responsible for the heavy rain event.
分析表明：条件性对称不稳定是这次强降水发生的不稳定机制之一。
The intensity of vorticity variability was closely related with the conditional symmetric instability in the middle-low troposphere.
而涡度变率强度与中低空的条件对称不稳定密切相关。
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