closed-circuit TV control system

例句：

1. 1. Theclosed-circuit TV control system isused to monitor the security of the building.
   闭路电视控制系统用于监控建筑物的安全。
2. 2. Theclosed-circuit TV control system wasinstalled in the new hospital to improve patientcare.
   在新的医院安装了闭路电视控制系统，以改善病人护理。
3. 3. The closed-circuit TV control system helps to preventtheft by monitoring all access points.
   闭路电视控制系统通过监控所有入口点来防止盗窃。