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Maintenance assistance technical worker in uniform is checking an operation and efficiency performance of photovoltaic solar panels on roof at sunset.

视  频 ID:  1058929211
版      权:  HQuality
视频长度:  0:20
横纵比率:  16:9
所属分类:  科技 工业 
商业用途(模特授权书存在站酷海洛)

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