RefrigerationAirConditioning&ElectricPowerMachineryRefrigerationAirConditioning&ElectricPowerMachineryRefrigerationAirConditioning&ElectricPowerMachineryRefrigerationAirConditioning&ElectricPowerMachineryEnergyEfficiencyofResidentialBuildingsinHotSummerandWarmWinterZoneJIZhao-liang(CollegeofCivilEngineering,GuangzhouUniversity,Guangzhou510405,China)Abstract:ThispaperbrieflyintroducesthecontentandcharacterofDesignstandardforenergyefficiencyofresidentialbuildingsinhotsummerandwarmwinterzoneJGJ75-2003,andalsodealswiththepropagatingandimplemntingconditionofenergyefficiencyofresidentialbuildingsinGuangzhoudistrict.Keywords:energyefficiencyofbuildings;hotsummerandwarmwinterzone;airconditioning;designstandardDecouplePrinciple'InfluenceOnCleannessTechniqueDevelopmentLIUHua,NIUWeile(InstituteofAirConditioning,ChinaAcademyofBuildingResearch,Beijing100013,China)Abstract:Thisarticlediscussesthat'decoupleprinciple'playsanimportantroleincleannesstechniqueresearch,andanalyzesitaimingatspecificcleannesstheoryandapplication.Authorthinks'decoupleprinciple'isanimportantexperimenttheorymethod,anditcanbringsomenewthoughtwaysandmeans.Keywords:decouple;cleannesstechnique;threezonenon-uniformitytheory;dampingleakagelayer;cleanoperatingdepartment