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ICS27.010CCSP45DB11北京市地方标准DB11/T2172—2023农村住宅空气源热泵供暖系统节能运行技术规程Technicalspecificationforenergysavingoperationofairsourceheatpumpheatingsystemsinruralresidentialbuildings2023-12-25发布2024-04-01实施北京市市场监督管理局发布DB11/T2172—2023I目次前言.................................................................................II1范围............
