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燃气冷热电联供工程技术规范 [附条文说明] GB51131-2016
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油气输送管道穿越工程设计规范 [附条文说明] GB50423-2013
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通风机能效限定值及能效等级 GB19761-2009
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转速可控型房间空气调节器能效限定值及能效等级 GB21455-2013
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输油管道工程设计规范 [附条文说明] GB50253-2014
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空调用通风机安全要求 GB10080-2001
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冷水机组能效限定值及能效等级 GB19577-2015
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地源热泵系统工程技术规范 [附条文说明] GB50366-2005(2009年版)
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