The site should have an emergency alarm system for notifying personnel to evacuate the site.
作业场地应设置了紧急事故警报系统，万一事故时用以通知全体人员撤离作业场地。
A new conception for new type cap lamps using lithium batteries and LED cold light as substitutes, with the functions of methane - alarm and personnel information tracking is put forward.
分析了国内外矿灯产品的技术现状，提出了研究开发以锂离子电池和LED冷光源为换代技术，兼具甲烷报警和人员信息跟踪功能的新型矿灯的设想。
Press alarm button or use any other telecommunication means to contact property management personnel or other related department.
使用紧急通话装置或其它通讯工具与物业电梯管理员或外界取得联系。
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