backing ring是什么意思、英文翻译及中文解释示例 本文已影响 368人 backing ring 词语: backing ring解释: 环形垫,环形垫圈词性: 名词词典: 冶金专业英汉词典 backing ring 相关解释 backing ring 〔名词〕垫环,衬环,垫圈 backing ring 〔名词〕衬环,垫圈,垫环 backing ring 〔名词〕衬环,垫圈,垫环 backing ring 垫环 backing ring 〔名词〕衬环,垫圈 backing ring 垫环 backing ring 〔名词〕衬圈,支承环