... oil ring gap;油环间隙 oil ring groove;油环槽 oil ring spring;油环弹簧 ...
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短语
活塞油环槽
piston oil ring groove
挡油环油槽
retainer oil seal groove
偏心环油槽
eccentric-strap oil pocket
槽油环
slotted oil control ring
油环环槽
oil control ring groove
循环恒温油槽
Circulating Oil Bath
开有螺旋槽的油环
spiral slotted oil control ring
循环油槽
circulating oil bath
环状油槽
endless oil groove