稍过一会，应急灯微弱的蓝光熄灭了。
A little later, the faint blue glow of the emergency lights went out.
那些紧急事件出口标志是否装备有应急灯？
Are there emergency exits signs that are equipped with emergency lights?
用干净的棉布加少许酒精擦洗应急灯部件；
在你的床边、工作地点以及车里放一盏应急灯。
Keep a flashlight beside your bed, at your place of work, and in your car.
无论白天或夜晚，市电恢复正常时，应急灯自动。
Whether by day or night, electricity is restored, the emergency lights automatically turn off.
无论白天或夜晚，市电恢复正常时，应急灯自动。
Whether by day or night, electricity is restored, the emergency lights automatically turn off.
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