However, conventional Turner bars or sweat rolls require physical contact which can damage the web surface and cause web creasing.
然而，常规转向器的条杆或蒸汽滚筒需要物理接触，这样会导致卷筒纸表面损坏和卷筒纸有折痕。
Under the effect of this kind of load, there are microscopic deformations and various disfigurements appear on the contact surface of the parts, and then lead to damage and failure.
在多冲载荷作用下，零部件大都会在其接触表面出现宏观可见的变形，并引发各种缺陷，从而导致零件损伤失效。
The shrink-fit components usually suffer fretting damage in the contact surface under rotating bending load, which remarkably reduce the life of the components.
过盈连接部件在旋转弯曲载荷下，易于在接触区域产生微动损伤，降低构件的使用寿命。
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