Wind power research. Workers attaching sensors to one of the blades of a wind turbine. Photographed at the National Renewable Energy Laboratory's Wind Technology Center in Boulder,Colorado,USA | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / West, Jim |
Bildgröße: | 3449 px × 5173 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |