picture signal monitor

例句：

1. 1. The picture signal monitor is used to detect and prevent the spread of diseases.
   图片信号监控器用于检测和预防疾病的传播。
2. 2. The picture signal monitor is an essential tool for maintaining public health.
   图片信号监控器是维护公共卫生的必备工具。
3. 3. The picture signal monitor helps us to identify potential threats in real-time.
   图片信号监控器帮助我们实时识别潜在的威胁。