4International Organization for Standardization. ISO 13790:2008 Energy performance of buildings- Calculation of energy use for space heating and cooling [ EB/OL]. [ 2015 - 2 - 15 ]. http :// www. iso. org/iso/catalogue_detail, htm? csnumber = 41974.
5Liu Junjie, Li Wenshen, Liu Jiang, et al recovery ventilator with various weathers Efficiency of energy and its energy saving performance in a residential apartment [ J ]. Energy and Buildings, 2010, 42( 1 ) : 43-49.
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