As a coefficient matrix of fault diagnosis equations, singularity of the sensitivity matrix restricts its solutions. On the other hand, sensitivity matrix is a function of testing frequency.
灵敏度矩阵作为故障诊断方程的一个系数矩阵，它的奇异性制约着故障诊断方程解的存在性，而灵敏度矩阵又是测试频率的函数。
As a coefficient matrix of fault diagnosis equations, singularity of the sensitivity matrix restricts its solutions. On the other hand, sensitivity matrix is a function of testing frequency.
灵敏度矩阵作为故障诊断方程的一个系数矩阵，它的奇异性制约着故障诊断方程解的存在性，而灵敏度矩阵又是测试频率的函数。
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