名词
中文翻译：低通滤波器
同义词：
['low-pass filter', 'low-pass attenuator']
例句：
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1. The audio signal was passed through a low-pass filter to remove noise.
音频信号经过一个低通滤波器以去除噪声。
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2. In digital signal processing, the low-pass filter is used to smooth the data.
在数字信号处理中，低通滤波器用于平滑数据。
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3. The low-pass filter is crucial for maintaining the stability of the system.
低通滤波器对于保持系统的稳定性至关重要。