I've seen once-shuttered factories humming with new workers who are building solar panels and wind turbines; rolling up their sleeves to help America win the race for the clean energy economy.

一些曾经关闭的工厂又有了新工人，开始忙碌着生产太阳能面板和风电涡轮机了，他们卷起袖子努力工作来帮助美国赢得清洁能源经济的竞赛。

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The central air condition's energy consumes occupy above 50% of whole building, it is the point of the building automation economy energy for central air condition inspect and control.

中央空调的能耗占整个建筑能耗的50%以上，因此中央空调是楼宇自动化系统节能的重点。

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Adopt in air condition, refrigerate etc. building the necessary and unique and hot material can reduce the thermal energy loss, economy energy.

在采暖、空调、冷藏等建筑物中采用必要的绝热材料能减少热能损失，节约能源。

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And by facilitating the creation of a clean energy economy, building this 21st century energy infrastructure will help us lay a foundation for lasting growth and prosperity.

WHITEHOUSE: President Obama Explains the Smart Grid and Economic Recovery | The White House

An important lesson to be drawn from the Utah experience is that significant progress in building a clean energy economy is possible even as the debate in Washington D.

FORBES: EBay And Republican Lawmaker Score Clean Energy Win In Utah

Our success will also require freeing ourselves from the dangerous dependence on foreign oil by building a clean-energy economy, because we know that with this will not only come greater security and a safer environment, but new high-paying jobs of the future to replace those that we've lost.

WHITEHOUSE: Online Town Hall