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Architecture and energy conservation --- Buildings --- Energy conservation --- Energy Star (Program)
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Photonics --- Optics --- Energy conservation --- Energy conservation. --- Optics. --- Photonics.
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Architecture and energy conservation --- Buildings --- Energy conservation --- Energy Star (Program)
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Public buildings --- Executive departments --- Energy conservation --- Energy conservation --- United States. --- United States. --- Energy consumption. --- Energy conservation.
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Public buildings --- Executive departments --- Energy conservation --- Energy conservation --- United States. --- United States. --- Energy consumption. --- Energy conservation.