sacurity alarm system

例句：

1. 1. The hospital has installed a safety alarmsystem to prevent accidents.
   医院安装了一套安全警报系统，以防止事故。
2. 2. The securityguard was monitoring the safetyalarm system when the fire brokeout.
   当火灾发生时，保安正在监控安全警报系统。
3. 3. The newsafety alarm system is designedto detect and alert emergency personnelin case of an incident.
   新的安全警报系统旨在检测并提醒紧急人员，以防事故发生。