名词
中文翻译：电子发射体
同义词：
['electronemitter', 'electron emitting source例句：1. The device isdesigned to emit electrons at aspecific frequency.（该设备设计为在特定频率发射电子。）2. The research focused on thebehavior of electrons in the quantum world.（研究专注于量子世界中电子的行为。）']
例句：
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1. The device isdesigned to emit electrons at aspecific frequency.
该设备设计为在特定频率发射电子。
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2. The research focused on thebehavior of electrons in the quantum world.
研究专注于量子世界中电子的行为。
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3. The electronbeam was used to scan the surface fordefects.
电子束被用来扫描表面以查找缺陷。