monitoring system of birth defect

例句：

1. 1. The hospital usesa monitoring system to monitor the patient's vital signs.
   医院使用一个监测系统来监测病人的体征。
2. 2. Thepolice department has implemented anew surveillance system to improve publicsafety.
   警察局实施了一个新的监控系统，以提高公共安全。
3. 3. The research team developed atracking system to locate missing children.
   研究小组开发了一个追踪系统，以定位失踪儿童。