建这么多太阳能版不知道效益如何?山上为什么不用风力发电?瑞士德国山区阳光多很多却到处都是风力发电的turban。
建这么多太阳能版不知道效益如何?山上为什么不用风力发电?瑞士德国山区阳光多很多却到处都是风力发电的turban。
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