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primary time standard 添加释义

网络释义英英释义

  基本时间标准

... 二级时间标准 secondary time standard 基本时间标准 primary time standard 频率时间标准 frequency time standard ...

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短语

primary time and frequency standard 原级时频标准

time and frequency primary standard 时间频率基准

Primary time standard

  • abstract: In telecommunications, a primary time standard is a time standard that does not require calibration against another time standard.

以上来源于: WordNet

双语例句

  • BACKGROUND: at the present time, liver transplantation has become a standard treatment for the end-stage liver disease and primary liver cancer.

    背景当前移植已经作为各种终末期肝病以及肝脏恶性肿瘤常规治疗手段。

    youdao

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