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upset butt welding短语解释_upset butt welding词组用法_upset butt welding短语词组_乐豆毛深蓝词典
乐豆毛深蓝词典

upset butt welding

U 开头单词

短语词组

    短语

  • resistance upset -butt welding [机]电阻锻压对顶焊接
  • dc upset butt welding 直流电阻对焊
    • 返回 upset butt welding