piezoelectric crystal filter

例句：

1. 1.The piezoelectric crystal filter is used to filter out noise in audio signals.
   压电晶体滤波器用于在音频信号中过滤掉噪声。
2. 2.The piezoelectric crystal filter is a crucial component of modern communication systems.
   压电晶体滤波器是现代通信系统的关键组成部分。
3. 3. The piezoelectric crystal filter is widely used in medical imaging devices.
   压电晶体滤波器在医疗成像设备中得到了广泛应用。