electron with-drawing group
【电学】电 子 倍 增 器【电学】电 子 倍 增 器
electron multiplier
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相关词条
X-Ray Emission Spectrometry, Electron Microscopic
electron microscopy
transmission scanning electron microscope, TSEM
electron probe microanalysis
electron microscope
spacing discharge tube, spacing of electron-optical or ion-optical arrangements
spacing arrangement, electron-optical, ion-optical