英语词汇“double-J groove weld”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	double-J groove weld
释义	double-J groove weld un.双面J形坡口焊；🌏双面J型坡口焊缝；双丁槽焊；双面J形坡口焊缝
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