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单词
ion-beam scanning
释义
ion-beam scanning
ion-beam scanning
[
′ī‚än ‚bēm ‚skan·iŋ
]
(electronics)
The process of analyzing the mass spectrum of an ion beam in a mass spectrometer either by changing the electric or magnetic fields of the mass spectrometer or by moving a probe.
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end of stream
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end of the ball game
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end of the church age
end of the cold war (1962-1991)
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更新时间：2025/8/15 10:18:38