audible and visible signal equipment

[audible and visible signal equipment]
[audible and visible signal equipment]

中文释义

声光信号设备

单词分析

单词结构:

audible and visible signal equipment

字母数:36

记忆提示

🎯 重点记忆:

  • 单词拼写:audible and visible signal equipment
  • 核心含义:声光信号设备