symmetrical band-reject filter

例句：

1. 1.The design of the symmetrical band-reject filter is crucial for theperformance of the system.
   对称带滤波器的设计对于系统性能至关重要。
2. 2. In this study, we used a symmetrical band-reject filter to improve the signal-to-noise ratio.
   在这项研究中，我们使用了一个对称带滤波器来提高信号与噪声的比值。
3. 3.The symmetrical band-rejectfilter was designed to eliminate interference from externalsources.
   这个对称带滤波器被设计用来消除来自外部源的干扰。