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[All-In-1-Min] 【整理】2009-05-08 VOA Video News

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本帖最后由 sweetaugust 于 2009-5-8 19:06 编辑

HW
Built in the 1930s during the Great Depression, the 102 storey Empire State Building is a giant architectural structure made of comcrete. Inside there are offices, restaurants and plenty of tourists  who come for the breast taking views of the Manhatton skyline.

Empire state prominence is what prompted owner to embark on a massive four year project to reduce its carbon footprint and energy consumption. The land marble undergo a serious of renovations including replacing all of the skyscraper 6500 windows with insulated glass that will reduce heat in the  summer and trap it in the winter.

Extra insulation were also be installed behind radiators to save heat. Other plans include installing energy efficient lighting, upgrading the buiding control systems to make them more energy efficient and adding modern air condition in heating systems whose output adjust with usage.
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  • lina0512

before I die ......
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