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RB211－535E4EnginesPerformanceTrendShiftAnalyse现代民用发动机的使用以视情维护为主，发动机状态监控是视情维护的重要组成部分。本文列举了在实际工作中遇到的发动机状态趋势变化的不同形式，并结合具体事例进行分析和总结。波音757飞机装用的RBZll－535E4发动机是使用罗
RB211-535E4EnginesPerformanceTrendShiftAnalyse The use of modern civilian engines is based on condition-based maintenance, and engine condition monitoring is an important part of condition-based maintenance. This article lists different forms of trends in the engine status encountered in actual work, and analyzes and summarizes the results with specific examples. The RBZll-535E4 engine used by the Boeing 757 aircraft is based on Lo