名词
中文翻译：四级发射器
同义词：
['fourth-level emitter', 'four-tier emitter']
例句：
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1. The new model has a four-level emitter system that significantly improves the performance of the device.
这款新型设备采用了四级发射器系统，显著提高了设备的性能。
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2. The research team developed a four-level emitter to detect and track small particles in the air.
研究团队开发了一种四级发射器，用于检测和追踪空气中的微小颗粒。
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3. The four-level emitter is crucial for maintaining the stability and efficiency of the power supply system.
四级发射器对于保持电源系统的稳定和效率至关重要。