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GB 51251-2017 第3.3.1条 Technical Standard for Smoke Control and Exhaust Systems in Buildings

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GB 51251-2017 第3.3.1条

| **** | For hotel buildings with a building height greater than 100 m, the mechanical pressurization air supply system shall be **divided into independent vertical sections**, and the height of each section shall not exceed **100 m**. |

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