unfired tube

英 [unfired tube]
美 [unfired tube]

中文释义

[电] 无火管

单词分析

单词结构：

unfired tube

字母数：12

记忆提示

🎯 重点记忆：

  • 单词拼写：unfired tube
  • 核心含义：[电] 无火管

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更新时间：2026-01-07 18:29:16