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1·This article discusses the changes in properties, in particular with regard to frictional resistance and the enormous reduction in wear, which can be achieved by adding aramid to PA66.

本文讨论了性能上的变化，特别是在改进耐摩擦性和大量减少磨损时的性能变化，这种改进是通过在PA66中添加芳胺纤维达到的。

2·Low frictional coefficient giving extremely low wear with otherwise unaltered mechanical properties.

低摩擦系数非常低，否则给予机械性能不变的磨损。

3·Furthermore, the effects of sliding frictional force between cylinder and tire on wear also were analyzed and calculation example was given.

分析了筒体与轮胎之间的滑动摩擦力对轮胎磨损的影响，并给出计算实例。

4·The Clearance adjusting mechanisms should be mounted on the brake oil cylinders in order to compensate the wear of the braking frictional plates, and generally the adjustment is by hand.

为补偿制动蹄片的磨损，在制动油缸上需设置间隙调整机构，通常所见为人工手调整。

5·The characteristic about wearing of frictional pairs of cam-jib in engine was analyzed. Based on discussing the mechanism of wearing, the particular measures of wear-reducing were presented.

介绍了发动机凸轮挺杆副的磨损特点， 分析其磨损机理， 提出减少磨损的措施。

6·The coating layer is a Telfon coating layer, namely a polytetrafluoroethylene coating layer, the coating layer can reduce frictional force, which leads the cylinder wall to be more wear-resisting.

涂层为特氟龙涂层，即聚四氟乙烯涂层，涂层可以减少摩擦力，使气缸壁更加耐磨。