back welding

英 [back welding]
美 [back welding]

中文释义

[化] 封底焊

单词分析

单词结构：

back welding

字母数：12

记忆提示

🎯 重点记忆：

  • 单词拼写：back welding
  • 核心含义：[化] 封底焊

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更新时间：2025-12-15 18:08:05