Check emergency lighting systems. Sandbagging when possible should protect ground level emergency generators.
检验应急灯系统。学习应急。如果可能，沙袋应偏护一楼应急发电机。
The major systems are: flight compartment lights, passenger compartment lights, exterior lights and emergency lights. In this lesson, we will introduce the flight deck lighting only.
主系统包括：驾驶舱灯光、客舱灯光、外部灯光及应急灯光。本文中，我们将只讲驾驶舱灯光。
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。
They're widely used in UPS systems, electronic instruments, emergency lighting, fire alarm and security, electromotive tools and toys, telecommunication system, etc.
广泛应用于UPS电源、电子仪器、应用照明系统、安全报警系统、电动工具及玩具、电会传系统、通讯设备领域。
They're widely used in UPS systems, electronic instruments, emergency lighting, fire alarm and security, electromotive tools and toys, telecommunication system, etc.
广泛应用于UPS电源、电子仪器、应用照明系统、安全报警系统、电动工具及玩具、电会传系统、通讯设备领域。
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