emergency illuminance是什么意思 emergency illuminance怎么读
emergency illuminance的相关资料
emergency illuminance的用法和样例
- In the event of a power failure the emergency lighting comes on automatically.
万一停电，应急照明设备会自动开启。 - Fire Emergency lighting is crucial in evacuating when a fire happens.
消防应急照明是人员在突发事故情况下安全疏散的重要保证。
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