back weld

英 [back weld]
美 [back weld]

中文释义

[化] 封底焊道

单词分析

单词结构：

back weld

字母数：9

记忆提示

🎯 重点记忆：

  • 单词拼写：back weld
  • 核心含义：[化] 封底焊道

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更新时间：2026-01-25 09:41:00