উইকিপিডিয়া, মুক্ত বিশ্বকোষ থেকে
At the USDA-ARS Conservation and Production Research Laboratory in Bushland, Texas, wind turbines generate power for submersible electric water pumps that are far more efficient than traditional windmills (background).
Picture taking from the USDA website at [1]
সংযোগসমূহ
নিচের পৃষ্ঠা(গুলো) থেকে এই ছবিতে সংযোগ আছে: