backing ring

英 美
  • 衬环,托圈,垫环
  • backing n.支持;背衬;伴奏动词back的现在分词.
  • 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
    1. An investigation was made into one of the self-adjustable boltsconnecting the converter trunnion ring in a steel-mill which broke after being in service for 13 months.
      分析了炼钢转炉托圈连接螺栓早期断裂的原因。