piston enchased wearing ring

英 美
  • 镶嵌耐磨圈活塞
  • enchased vt.镶嵌;镂刻;雕刻
  • piston n.活塞
  • ring n.戒指;环;圈;拳击场;马戏场;帮派n.铃声;钟声;电话;口气v.包围;环绕;形成圈v.打电话;回响;鸣响;按铃;听上去
  • wearing adj.穿用的;使疲惫的;磨损的wear的现在分词.