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均匀场聚焦
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电子注聚焦
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uniform field focusing
均匀场聚焦
使电子注内空间电荷发散力、离心力和磁聚焦力之间达到平衡,使电子注没有波动或波动很小的电子注聚焦方法。
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livestock hysteria
livestock intestinal absorption
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living anionic polymerization
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