progress of fatigue造句

例句与造句

1. The phenomenon of crack closure , which is important for the crack growth , is widely existed in the progress of fatigue crack growth in the metal materials
   裂纹闭合现象普遍的存在于金属材料的疲劳裂纹扩展过程中，对裂纹扩展有着重要的作用。
2. It's difficult to find progress of fatigue in a sentence. 用progress of fatigue造句挺难的