... 槽油环 slotted oil control ring 螺旋弹簧加载双坡口油环 coil spring loaded slotted oil control ring 涨环 expander ...
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短语
挡油环油槽
retainer oil seal groove
开有螺旋槽的油环
spiral slotted oil control ring
偏心环油槽
eccentric-strap oil pocket
油环槽
oil ring groove
活塞油环槽
piston oil ring groove
循环油槽
circulating oil bath
油环环槽
oil control ring groove
油环导槽
oil-ring guide