在这些活塞中,活塞环的数量减少到三个,即两个气环,一个油环。
On these pistons the number piston rings was reduced to three, two compression and one oil-control.
曲径汽封和活塞环提供了双密封系统,使油保持洁净并减少磨损。
Labyrinth seal and piston ring provide a dual sealing system, keeping oil clean and reducing wear.
清洁活塞环槽或油环开缝,绝对不能损伤金属部分。
Be sure that you do not remove metal when cleaning ring grooves or oil slots.
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