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[规范条文] GB51348 13.6.6应急照明最少持续时间 |
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点评
睁大眼睛先去看看规范和国家技术标准,看了之后来论坛交流才有意义,大家的起步会是有共同语言来探讨。无知+不学,你在论坛能说什么?
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