名词
中文翻译：低通滤波器
同义词：
['low-pass filter', 'band-pass filter', 'high-pass filter']
例句：
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1. The low-pass filter is used to remove noise from audio signals.
低通滤波器用于从音频信号中去除噪声。
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2.The band-pass filter is used to pass only specific frequencies of a signal.
带通滤波器用于只通过信号的特定频率。
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3.High-pass filters are used to pass only certain frequencies of a signal.
高通滤波器用于只通过信号的某些频率。