doubly closed tube

[doubly closed tube]
[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