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GB 51251-2017 第4.4.1条 Technical Standard for Smoke Control and Exhaust Systems in Buildings

Smoke exhaust system design消防工程

GB 51251-2017 第4.4.1条

| **** | In large-space areas of hotel buildings such as **atria**, **lobbies**, and **ballrooms**, when mechanical smoke exhaust is provided, the smoke exhaust system shall be installed independently and shall not be combined with smoke exhaust systems serving other areas. |

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