Изображение: Hamad I Mohammed / Reuters
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Instead of a continuous stream, the electron beam is divided into nanosecond-long bunches—billions of electrons riding the radio-frequency field like surfers. Inside the accelerator’s cavities, the field flips polarity 12 billion times per second, so timing is everything: Only electrons that arrive perfectly in phase with the accelerating wave will gain energy. That process repeats through a chain of cavities, each giving the bunches another push, until the beam reaches its final energy of 200 MeV.
胡群俊最后强调,当前正值承前启后的关键时期,做好巡视工作具有重要意义。在实现中央巡视全覆盖的同时,省级党委和中央部门也在持续推进巡视工作。要坚持质量优先原则,把发现问题作为核心任务,对存在隐患的区域和单位适时开展"回头看",持续巩固巡视监督成效。
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