卫星的故障诊断是实现长寿命高可靠性要求的一项关键技术。
The fault diagnosis technique is a key technology to ensure longevous service and the high reliability of satellite.
故障诊断和寿命预测是民航发动机健康管理的重要内容，是实现发动机视情维修的主要技术手段。
Fault diagnosis and life predication are key parts of civil aviation engine heath management system, and are the important means to achieve on-condition maintenance.
在此基础上，研究了重大水利水电工程寿命诊断的理论和方法以及技术。
Based on the above rules, this paper proposes the theories, methods and technologies on life diagnosis for the important hydraulic engineerings.
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