求翻译：2010年以后，国家持续实行稳健的财政政策，对基础设施建设等公益性项目信贷政策紧缩，对房地产市场全面调控，哈尔滨市原计划的项目资金运作模式已经难以实现。为确保完成节能减排刚性目标，计划进一步加大既有建筑节能综合改造合同能源是什么意思？

After 2010, the country has continued to pursue a prudent fiscal policy, credit policy tightening of public welfare projects such as infrastructure construction, comprehensive regulation of the real estate market, the the Harbin City project funds originally planned mode of operation has been diffic