国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

Liquid Rocket engine is a complicated system including physical and chemical process. The health management is critical task for improving engine operation. The capability to manage Hydrogen-Oxygen engine can not only improve the safety and efficiency of engine operation during flight but also facilitate better maintenance planning. The Health Management System consisted condition monitoring￥Fault detection and diagnosis and life prediction. Firstly the development of health management is discussed, then different types of fault diagnosis are introduced here, at last, the key point technologies are summarized in this paper.