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

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Built in the 1930s during the Great Depression, the 102-story Empire State Building is an giant architectal structure made of concrete, inside are offices, restaurants and plenty of toss, who come from the break-taking views of the Manhattan skyline.

Amport Stateman is what prompted owners to a large and massive 4-year project to reduce its carbon footgrain and energy consumption. The landmark undergoes series of renovations, including replacing all of the skyscraper’s 6500 windows with insulated glass that will reduce heat in the summer and trap it in the winter. Extra insulation will also be installed behind gradiator to save heat.


Other plans include installing energy-efficient lighting, upgrading the building-control system to make them more energy-efficient and adding modern air-conditionings and heating systems whose output adjust with usage.
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