four electrode vacuum tube

英 [four electrode vacuum tube]
美 [four electrode vacuum tube]

中文释义

四极真空管

单词分析

单词结构：

four electrode vacuum tube

字母数：26

记忆提示

🎯 重点记忆：

  • 单词拼写：four electrode vacuum tube
  • 核心含义：四极真空管

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更新时间：2026-02-21 20:53:40