Enerji tüketimi ve enerji tasarrufu konu: insan eli beyaz bir arka plan üzerinde bir ampul tutan - Stok Fotoğraf ve Görsel
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Energy consumption and energy saving topic: human hand holding a light bulb on a white background
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Hand hold Lightbulb Creativity or Thinking Innovation Creative concept
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shalunx13Energy consumption and energy saving topic: human hand holding a light bulb on black background
Energy consumption and energy saving topic: human hand holding a light bulb on black background
Energy consumption and energy saving topic: human hand holding a light bulb on black background
Energy consumption and energy saving topic: human hand holding a light bulb on black background
Energy consumption and energy saving topic: human hand holding a light bulb on black background
Energy consumption and energy saving topic: human hand holding a light bulb on black background
Energy consumption and energy saving topic: human hand holding a light bulb on black background
Energy consumption and energy saving topic: human hand holding a light bulb on black background
Energy consumption and energy saving topic: human hand holding a light bulb on black background