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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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capitalist farm
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capitalization of agriculture in England
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Capital Journal
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Capital Longquanfu of Bohai State
Capital Luoyang of Eastern Zhou Dynasty
capital maintenance principle
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capital market efficiency principle
capital market institution
Capital Museum,China
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