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1.The contact friction between the two surfaces is a significant factor in determining the performance of the system.
两个表面之间的接触摩擦是决定系统性能的一个重要因素。
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2. In order to improve the wear resistance of the material, it is necessary to reduce the contact friction.
为了提高材料的耐磨性，有必要降低接触摩擦。
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3. The contact friction between the moving and stationary parts can cause wear and tear on the components.
移动部件和固定部件之间的接触摩擦会导致部件磨损。