英语词汇“backing ring”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	backing ring
释义	backing ring 基本例句衬环,托圈,垫环 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。
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