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periodic reverse permanent magnet focusing
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periodic reverse permanent magnet focusing
Encyclopedia
工学
电子注聚焦
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periodic reverse permanent magnet focusing
周期反转永磁聚焦
极性相反的径向磁化的永磁铁沿电子注行进方向排列,产生周期反转磁场的永磁聚焦方式。
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