manual common battery switchboard

[manual common battery switchboard]
[manual common battery switchboard]

中文释义

人工共电式交换台

单词分析

单词结构:

manual common battery switchboard

字母数:33

记忆提示

🎯 重点记忆:

  • 单词拼写:manual common battery switchboard
  • 核心含义:人工共电式交换台