This scheme may prevent the harmful variation and also improve the lubrication performance of the hydraulic liquid as well as the stability.
该方案可阻止有害变化，并提高了液压液的润滑性能和稳定性。
They can also improve the lubrication performance of the gear box rolling bearing.
它们还可提高对齿轮箱滚动轴承的润滑性能。
It can improve the lubrication performance between cylinder liner and piston rings and enhance the rigidity of cylinder wall farthest.
该方法能够更好地改善缸套和活塞环的润滑性能并能提高缸套的表面硬度。
It can improve the lubrication performance between cylinder liner and piston rings and enhance the rigidity of cylinder wall farthest.
该方法能够更好地改善缸套和活塞环的润滑性能并能提高缸套的表面硬度。
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