Specific concept of matter element fault tree(MFT) based upon extension theory(extenics) is explicated, and its extension diagnosis method is given.
在可拓学理论的基础上，阐述了物元故障树的概念，并给出了物元故障树的可拓诊断方法。
By applying the extension theory and AHP method, a new extension breakdown forecast and diagnosis model is built.
运用可拓理论及AHP法，建立一种新的可拓故障诊断方法。
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