Serious bumpy flight conditions may lead to material fatigue and even to aircraftfailure, not to speak of passenger discomfort.
剧烈的颠簸飞行状况可能导致金属疲劳，甚至导致飞机失事，更不必说旅客感觉不舒适了。
2
One thing that does ground old aircraft is the impending failure of their aluminium structure from metal fatigue.
让老旧飞机搁浅的一件事就是飞机铝构造因为金属疲劳产生的故障隐患。
3
In order to validate validity of the designed fault diagnosis method, simulation researches are conducted with the major failure of certain kind aircraft autopilots flying-controlled box as the ex.