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time-and-frequency standard
time-and-frequency standard
英
[time-and-frequency standard]
美
[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
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更新时间:2026-02-02 20:24:52