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Windmill, alternative energy source
Windmill, alternative energy source
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Sep.09, 2010 06:40:54
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GREEN YELLOW BLUE SKY SUMMER GRASS FIELD NATURE FRESH ENVIRONMENT RURAL WIND ENERGY CLOSE ELECTRIC ELECTRICITY GENERATION POWER SUPPLY TECHNOLOGY MODERN LANDSCAPE INDUSTRY ECOLOGY FARM AGRICULTURE GLOBAL DEVELOPMENT CLEAN ENVIRONMENTAL RECYCLE CLOUDS DETAILED ECOLOGICAL PRODUCTION ALTERNATIVE GENERATOR TURBINE WINDMILL PROPELLER CLIMATE WARMING ROTATE SOURCE RENEWABLE RESOURCE GENERATING PRODUCING SUPPLING