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Nier-Johnson geometry mass spectrograph
释义
Nier-Johnson geometry mass spectrograph
尼尔-约翰逊型双聚焦质谱计[ 离子束在径向静电场分析器中偏转 90° 后,再在扇形磁分析器中偏转 60° 的]
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extemporate
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extenal diffusion
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更新时间:2025/3/21 1:14:19