thermionic vacuum tubes

[thermionic vacuum tubes]
[thermionic vacuum tubes]

中文释义

热离子真空管 (thermionic vacuum tube 的复数)

单词分析

单词结构:

thermionic vacuum tubes

字母数:23

记忆提示

🎯 重点记忆:

  • 单词拼写:thermionic vacuum tubes
  • 核心含义: 热离子真空管 (thermionic vacuum tube 的复数)