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counter boring
词语: counter boring
解释: 镗阶梯孔
词性: 名词
词典: 汽车专业英汉词典
counter boring 相关解释
counter boring 〔名词〕平底扩孔,平底锪孔
counter boring 扩孔
镗阶梯孔 〔名词〕counter bore