hard vacuum tube

英 [hard vacuum tube]
美 [hard vacuum tube]

中文释义

高[度]真空管

单词分析

单词结构：

hard vacuum tube

字母数：16

记忆提示

🎯 重点记忆：

  • 单词拼写：hard vacuum tube
  • 核心含义：高[度]真空管

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更新时间：2026-04-13 05:57:15