Its main role in public security is as a deterrent; even on the quietest days, its troops patrol in armoured personnel carriers, pointing automatic weapons out of the Windows.
即使在最安静的日子，他们在公共安全领域的主要角色也只是一个威慑者，他们的巡逻队座在装甲车里，用自动武器指着窗外。
USC added nearly 60 security cameras in two years and expanded its public safety patrol area significantly.
南加大在过去两年内加装了60个安全摄像头，并扩大了公共安全巡逻区域。
Hospitals will improve security systems, and major hospitals must install monitoring videos in public areas and wards 3. In addition, they should arrange security patrol in emergency areas.
医院还将改进安全系统，重点医院须在公共区域和病房安装监控设备。此外，医院还应安排人手对急诊区域进行治安巡查。
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