GB/T 50466-2018 第2.0.8条
| | Air tightness: the ability of the building envelope to resist air infiltration. In hotel buildings, high air tightness can reduce the fresh air load and improve energy efficiency. |
| | Air tightness: the ability of the building envelope to resist air infiltration. In hotel buildings, high air tightness can reduce the fresh air load and improve energy efficiency. |
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