根据以可靠性为中心的维修（reliability-centered maintenance,RCM）理论，对超临界汽轮机电动液压（electro-hydraulic,EH）油系统进行了可靠性维修分析，得出若干计划预防性维修优化措施，对原有的EH油系统维修决策模型进行了优化。

Based on reliability-centered maintenance(RCM)Ⅱ theory, the reliability maintenance analysis for electro-hydraulic(EH) oil system of supercritical steam turbine is carried out, several preventive optimization measures are proposed, and the original maintenance decision model of EH oil system is optimized.