time and frequency standards

英 [time and frequency standards]
美 [time and frequency standards]

中文释义

时间和频率基准

单词分析

单词结构：

time and frequency standards

字母数：28

记忆提示

🎯 重点记忆：

  • 单词拼写：time and frequency standards
  • 核心含义：时间和频率基准

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更新时间：2026-01-30 20:05:19