maintenance emergency lighting的意思|示意

Yet physically, of course, the city remains the same size, imposing most of the same requirements of road maintenance, street lighting, rubbish collection and emergency-service response times.

当然，理论上说，这个城市并没有变小，有着几乎与以前一样的养路需求，街区照明，垃圾收集以及紧急服务响应时间。

Elv maintenance groups: responsible for the elv work, including fire alarm system, broadcasting system, emergency lighting system, monitoring systems, access control, conference room av system, etc.

弱电维修组：负责全厂弱电工作，包括火灾报警系统，广播系统，应急照明系统，监控系统，门禁系统，会议室影音系统等。