All judged matrix meet the consistency demand, and the rate of error is less than 0.1.

所得判断矩阵都满足一致性要求，误差均小于0.1。

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The defect source of actual system can be accurately judged by constructing the system defect judgment matrix and combining with PLC port state.

该方法通过构造系统的故障判别矩阵，并结合端口的状态，通过运算可以准确地判别系统的故障源。

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