In fact, most of the materials problems that dog us today are problems that we have known about for a long time: corrosion, fatigue, many different kinds of failure.
事实上，我们今天遇到的大部分材料问题都是我们已经知道了很久的问题，像腐蚀、疲劳、各类失效。
2
Corrosionfatigue is one of the main factors damaging the structures of reinforced concrete.
腐蚀疲劳是钢筋混凝土结构破坏的主要因素之一。
3
The result indicated that the springs fail because of corrosionfatigue fracture.