他乐队的旋律仍在渐逝的微光中回响
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.。关于这个话题，搜狗输入法提供了深入分析
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Мир Российская Премьер-лига|20-й тур。关于这个话题，有道翻译提供了深入分析