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讨论了ＣＦＢＢＥＸＰＴＳ的故障机理和故障对象——异常参数因果依赖网络。因果依赖网络描述了故障对象（故障源）与异常状态参数（故障征兆）的对应关系。以等级网络下的热力对象的定性功能模型和模糊故障模型为基础，因果依赖网络的建立是一种新的知识重构。它是更高级和更深层次上的知识形式与表示。同时，它也是实现候选故障快速生成及诊断的基础。图３表６参８
The failure mechanisms and fault objects of CFBBEXPTS are discussed. The causal dependent network of abnormal parameters. The causal dependent network describes the correspondence between the faulty object (faulty source) and the abnormal state parameters (fault symptom). Based on the qualitative functional model and fuzzy fault model of thermal objects under hierarchical network, the establishment of causal dependence network is a new kind of knowledge reconstruction. It is a more advanced and deeper form and expression of knowledge. At the same time, it is also the basis for the rapid generation and diagnosis of candidate faults. Figure 3 Table 6 参 8