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Wind energy
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Feb.02, 2010 17:17:34
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GREEN BLUE VIEW DESIGN SKY BEAUTIFUL MEADOW FIELD NATURE OUTDOOR ENVIRONMENT WIND ENERGY SOLAR CLOUD EFFICIENCY ELECTRIC ELECTRICITY GENERATION INDUSTRIAL POWER SUPPLY TECHNOLOGY LANDSCAPE ELEMENTS CONCEPT FARM FINGERS PANEL DEVELOPMENT CLEAN BLADES ENVIRONMENTAL BUILD EFFICIENT ALTERNATIVE FRIENDLY MILL TURBINE WINDMILL INNOVATION ROTATION SAFE ROTATE ROTATING ECOLOGIC RENEWABLE RESOURCE SUSTAINABILITY SUSTAINABLE