最常见的方法是分类归入到四维矩阵中，矩阵的一个轴上是服务器和虚拟机，另外一个轴上是网络和存储。

The most common method is to split the categories into a four-way matrix with server and virtual machine problems on one axis and network and storage on the other axis.

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最后，用一个虚拟实例说明了阶段矩阵模式的有效性。

At last, the validity of the stage matrix model is illustrated with a virtual example.

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利用空间四阶累量的孔径扩展性质，构造了一种新的累量域虚拟阵列波达方向矩阵。

A new type cumulant-based virtual DOA matrix is formed using the property of aperture extension of fourth-order cumulants.

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