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节能建筑评价标准 [附条文说明] GB\T50668-2011
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低温单元式空调机 GB\T20108-2017
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供热计量技术规程 [附条文说明] JGJ173-2009
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城镇燃气用二甲醚应用技术规程 [附条文说明] T\CECS518-2018
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