narrow-band colour-difference demodulator

例句：

1. 1. The narrow-band color-difference demodulator is used to filter out noise in the signal.
   窄带彩色差分解调器用于过滤信号中的噪声。
2. 2. The narrow-band color-difference demodulator is essential for maintaining a stable communication link.
   窄带彩色差分解调器对于保持稳定的通信链路至关重要。
3. 3. The narrow-band color-difference demodulator was developed to improve the accuracy of image recognition systems.
   窄带彩色差分解调器的开发是为了提高图像识别系统的准确性。