track-side telephone switching device

[track-side telephone switching device]
[track-side telephone switching device]

中文释义

区间电话转接机

单词分析

单词结构:

track-side telephone switching device

字母数:37

记忆提示

🎯 重点记忆:

  • 单词拼写:track-side telephone switching device
  • 核心含义:区间电话转接机