名词
中文翻译：穿孔阴极
同义词：
['perforated cathode', 'perforated cathode electrode', 'perforated cathode grid']
例句：
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1. The new design uses a perforated cathode to improve the efficiency of the device.
新设计使用了穿孔阴极来提高设备的效率。
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2.The cathode is made of perforated metal, which allows for easy cleaning and maintenance.
阴极由穿孔金属制成，便于清洗和维护。
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3. The perforated cathode is crucial for maintaining the stability of the electric field in the device.
穿孔阴极对于维护设备中电场的稳定性至关重要。