time and frequency standard

英 [time and frequency standard]
美 [time and frequency standard]

中文释义

时间和频率标准

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：时间和频率标准

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更新时间：2026-01-31 18:40:50