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
双语例句
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。