Finally, define the preventive maintenance program by fault classifying, deciding the important function project, the fault mode and influence analysis, RCM decision and record.

通过故障分类、确定重要功能项目、故障模式及影响分析、RCM决断和记录，最后制定预防性维修大纲。

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Based on the analysis of the failure mode, this paper put forward the measure for fault protection and pointed out the research direction for developing the reliability of turbine sealing oil system.

通过对失效模式的分析，提出了减少密封油系统故障的有效措施，指出了提高密封油系统可靠性的研究方向。

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Causality diagram methodology is a probabilistic reasoning, which can be applied to fault analysis. However, it lacks analysis on the importance of failure mode.

因果图理论是可以进行故障分析的概率推理方法，但是缺乏对故障模式的重要性的分析。

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