求翻译：伟盛公司自成立以来，在既有建筑节能领域做了大量基础性、示范性工作。2008年，公司受哈尔滨市墙改办的委托，对哈尔滨市城区既有建筑节能改造的可行性进行调查摸底，为哈尔滨市有关政府部门进行既有建筑节能改造的规划和决策，提供了可资参考的第一手资料，为推进哈市如期完成国家下达的“十一五”既有建筑节能改造计划，做出了贡献。2010年，公司实施的辽河小区和哈尔滨师范大学既有建筑节能改造项目，总建筑面积59.21万平方米，是黑龙江省首批以合同能源管理模式进行的既有建筑节能改造项目。是什么意思？

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Wilson company since its establishment, the existing building energy efficiency has done a lot of basis, model of the work. In 2008, the company changed the city of Harbin is entrusted the Office of the city of Harbin city, as well as building energy-efficient transformation of the feasibility study

Wei sheng company since its inception, in the energy efficiency of existing buildings did a lot of basic, exemplary work in the field. In 2008, the company commissioned by the Harbin city wall having their