doubly closed tube

英 [doubly closed tube]
美 [doubly closed tube]

中文释义

[电] 双闭管

单词分析

单词结构：

doubly closed tube

字母数：18

记忆提示

🎯 重点记忆：

  • 单词拼写：doubly closed tube
  • 核心含义：[电] 双闭管

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更新时间：2026-02-05 05:05:11