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...
应用场致发射冷阴极的成功克服了热阴极给极高真空测量和获得方面带来的限制因素，是解决极高真空测量问题的关键一步。
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的成功克服了热阴极给极高真空测量和获得方面带来的限制因素，是解决极高真空测量问题的关键一步。
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的成功克服了热阴极给极高真空测量和获得方面带来的限制因素，是解决极高真空测量问题的关键一步。
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