名词
中文翻译：Unknown
同义词：
['electron beam', 'electron beam current', 'electron beam power']
例句：
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1. The electron beam is used to scan the surface of the sample for defects.
电子束用于扫描样品表面以检测缺陷。
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2.The electron beam power is critical for the operation of the electron microscope.
电子显微镜的运行需要电子束功率。
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3. The electron beam is focused onto the target material to produce a high-energy particle beam.
电子束聚焦到靶材上，产生高能粒子束。