On the basis of the analysis of a fault tree model with causal diagnosis knowledge,amethod of generation rule based on explanation learning is proposed. 通过对机械设备中存在的因果诊断知识故障树模型的分析，提出了一种基于解释学习的产生规则的方法。
Furthermore, a fault tree model based on structural reliability theory was developed for failure probability study of high arch darns, and a calculation example was given. 建立了基于结构可靠度理论的高拱坝失效概率故障树模型并给出了具体算例。
