This giant flower is made of solar panels. The SmartFlower mimics the ... They're made by Pavegen and can generate up to 7 watts of power per step. They're most effective in high-traffic areas ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果一些您可能无法访问的结果已被隐去。
显示无法访问的结果