standard frequency and time signal

[standard frequency and time signal]
[standard frequency and time signal]

中文释义

标频时号

单词分析

单词结构:

standard frequency and time signal

字母数:34

记忆提示

🎯 重点记忆:

  • 单词拼写:standard frequency and time signal
  • 核心含义:标频时号