基本解释刮油圈；[機] 刮油環词组短语短語oil l scraper ring 刮油圈oil scraper piston ring 刮油活塞環slotted oil scraper ring 開槽刮油環grooved drum oil scraper ring 開槽油環twin -rail oil scraper ring 雙片刮油環oil scraper ring更多词组专业释义機械工程括油環刮油圈刮油環油環