英语词汇“back step welding”的翻译、意思、用法、释义-英汉汉英词典

单词	back step welding
释义	back step welding退焊；后退熔焊back step welding[后]退銲接back step welding退焊；後退熔焊海事back step welding（後）退銲接；分段後退銲法機械工程back step welding[後]退銲接造船工程名詞
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