The dust will also cause bearing, cylinder-wall, and piston and ring wear.
灰尘同．样也会导致轴承、气缸壁、活塞和活塞环的磨损。
2
The design of integral non-backpressure piston rings was studied in order to reduce wear and to raise the pistonring life.
为了减少磨损，提高活塞环的使用寿命，对整体无背压活塞环的设计进行了研究。
3
The design of pistonring depends on the rightly selected dimensions, so that the pistonring tension can meet the demand stipulated with its stress in the allowed range.