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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 a giant / structure made of concrete. Inside are offices, restaurants and plenty of tourists who come for the breath-taking views of the Manhattan skyline.

Empire State’s prominence is what prompted honors to embark on a massive 4-year project to reduce its / and energy consumption. The landmark will undergo a 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 the radiators to save heat. Other plans including installing energy efficient lighting, upgrading the building control systems to make them more energy efficient and adding modering air conditioning and heating systems whose output adjusts with usage.
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