directly-heated cathode

英 [directly-heated cathode]
美 [directly-heated cathode]

中文释义

直热[式]阴极

单词分析

单词结构：

directly-heated cathode

字母数：23

记忆提示

🎯 重点记忆：

  • 单词拼写：directly-heated cathode
  • 核心含义：直热[式]阴极

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更新时间：2025-12-09 17:14:34