英语词汇“Nier-Johnson geometry mass spectrograph”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	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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