Based on the bench test, a system is developed for measuring the variation of the friction between piston ring and cylinder liner.

作者结合发动机试验台，设计了一套对活塞环-缸套动态摩擦力进行采集的装置。

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Also, the radial deformation of cylinder liner and piston ring should be reduced to improve the lubrication performances of piston ring.

此外，为了提高活塞环润滑性能应尽量减少气缸套和活塞环的径向变形量。

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Also, the radial deformation of cylinder liner and piston ring should be reduced to improve the lubrication performances of piston ring.

此外，为了提高活塞环润滑性能应尽量减少气缸套和活塞环的径向变形量。

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