• This is the basis for the well - known cesium clock, presently the standard of frequency and time.

    就是众所周知原子钟的基础,它是目前频率时间基准

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  • This uncertainty is one of the critical factors governing the accuracy level of the cesium fountain frequency standard.

    此项误差决定原子喷泉准确度总体水平主要因素之一

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  • A portable laser system, continually working for very long period, is the key part in realization of an optically pumped cesium beam frequency standard.

    长期连续工作袖珍激光系统实现实用抽运铯标的关键

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  • A portable laser system, continually working for very long period, is the key part in realization of an optically pumped cesium beam frequency standard.

    长期连续工作袖珍激光系统实现实用抽运铯标的关键

    youdao

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