time-and-frequency standard

[time-and-frequency standard]
[time-and-frequency standard]

中文释义

时[间]频[率]标准

单词分析

单词结构:

time-and-frequency standard

字母数:27

记忆提示

🎯 重点记忆:

  • 单词拼写:time-and-frequency standard
  • 核心含义:时[间]频[率]标准