oil control ring [车辆] 护油圈 ; 滑油控制涨圈 ; 开槽油环
spring-loaded oil control ring 弹簧油环
spiral slotted oil control ring 开有螺旋槽的油环
Bevelled-edge Oil Control Ring 异向倒角油环
Multi-piece Strll-Rail Oil Control Ring 组合油环
stepped oil control ring 阶梯状断面油环
oil control ring gap 油环开口间隙
The piston rings carried in the ring groove are of two basic types: compression rings and oil-control ring.
安装在环槽中的活塞环有两种类型：压缩环和机油环。
The upper ring or rings are to prevent compression leakage; the lower ring or rings control the amount of oil being deposited on the cylinder wall.
上部的活塞环用来阻止压缩空气泄露；而下部的活塞环用来控制气缸壁上存留下来的机油数量。
By analysis of piston ring, this paper describes important effects of piston ring on oil consumption control.
通过对活塞环的分析，说明活塞环在机油耗控制方面所起的重要作用。
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