backing welding

英 [backing welding]
美 [backing welding]

中文释义

打底焊

单词分析

单词结构：

backing welding

字母数：15

记忆提示

🎯 重点记忆：

  • 单词拼写：backing welding
  • 核心含义：打底焊

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更新时间：2026-01-28 03:04:14