• The factors limiting the measurement and achievement of extremely high vacuum due to the existence of a hot cathode was overcome by the successful use of the field-emission cold cathode...

    应用场致发射阴极成功克服阴极给极高真空测量获得方面带来的限制因素解决极高真空测量问题的关键一步。

    youdao

  • The factors limiting the measurement and achievement of extremely high vacuum due to the existence of a hot cathode was overcome by the successful use of the fie…

    应用场致发射冷阴极成功克服阴极给极高真空测量获得方面带来限制因素解决极高真空测量问题的关键一步。

    youdao

  • The factors limiting the measurement and achievement of extremely high vacuum due to the existence of a hot cathode was overcome by the successful use of the fie…

    应用场致发射冷阴极成功克服阴极给极高真空测量获得方面带来限制因素解决极高真空测量问题的关键一步。

    youdao

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