1·Piston rings not sealing (oil being consumed by the engine).
活塞环没密封(引擎用油)。
2·Thus, piston rings must be used to provide the necessary seal.
所以活塞环就用来提供必要的密封。
3·Major production and distribution piston rings and valve seat.
主要生产和经销活塞环及气门座圈。
4·Check the slide faces of the piston rings and stuffing box rings.
检查活塞环以及填料函圈的滑动面。
5·If any worn-out piston rings are found, the serious ones will be renewed.
假如发明有磨损的活塞环，磨损严重的要换新。
6·WE NEED Piston rings for Japanese, German, etc cars and trucks. PLS contact us.
我们需要用于日本、德国等车型的活塞环，请联系我们。
7·Main: various models of motorcycle pistons, piston rings, cylinder sleeve, cylinder.
主营：各种型号摩托车活塞、活塞环、套缸、缸体。
8·There appear cracks and chunk peelings in the chrome-plated layer of these piston rings.
活塞环镀铬层有裂纹和块状剥落。
9·The paper analyzes the causes of short operation period and quick abrasion of piston rings.
对氧压机运行周期短， 活塞环磨损过快进行原因分析。
10·It is equipped with piston rings to provide a good seal between the cylinder wall and piston.
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。