在二冲程发动机中你必须混和燃料和气体，因为气缸壁上的孔阻止使用活塞环密封燃烧室。
You have to mix oil into the gas in a two-stroke engine because the holes in the cylinder wall prevent the use of rings to seal the combustion chamber.
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.
所以活塞环就用来提供必要的密封。
Thus, piston rings must be used to provide the necessary seal.
活塞环没密封(引擎用油)。
Piston rings not sealing (oil being consumed by the engine).
结果表明，磨损对环组的密封性能影响很大，而工况对活塞环的密封性影响不是很明显；
The simulation results show that wear has a great influence on piston tings seal, but the influence of working conditions is not obvious.
上面装有活塞环，从而使活塞和气缸壁之间具有良好的密封性。
It is equipped with piston rings to provide a good seal between the cylinder wall and piston.
在活塞环的内侧设置金属的弹力环增加非金属活塞环的预弹力，可到达预期的密封效果。
Metal elastic force ring inside piston rings can add initial elastic force of the non-metallic piston ring to get expectative seal effect.
汽车发动机上的活塞环通常是有接口的。但在一些重型发动机上，活塞环的接口可以是斜角接口，搭接式或密封式的。
Rings for automotive engine usually have butt joints, but in some heavy-duty engines, the joints may be angled, lapped, or of the sealed type.
活塞环必须保持自由以便能正确地运动及维持好的密封。在活塞环槽内和活塞岸上的沉积物必须被控制。
Rings must remain free to function properly and to maintain a good seal. Deposit build up in the ring grooves and on piston lands must therefore be controlled.
聚四氟乙烯内衬直管，套管，弯头，三通，四通，大小头，筒体，空压机-制氧机- 活塞环、密封圈和汽配封圈。
Teflon - lined pipe, casing, elbow, the three exchanges or four, size head, cylinder, air compressor - oxygen - ring, gasket seal ring and auto parts.
聚四氟乙烯内衬直管，套管，弯头，三通，四通，大小头，筒体，空压机-制氧机- 活塞环、密封圈和汽配封圈。
Teflon - lined pipe, casing, elbow, the three exchanges or four, size head, cylinder, air compressor - oxygen - ring, gasket seal ring and auto parts.
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