aerial view, dam and waterfall or water in nature for power production, renewable energy and sustainable electricity. hydroelectric, bridge and drone of river, lake and flood gate in south africa - 水力發電 個影片檔及 b 捲影像00:15
drone, dam and lake of water with rainbow in nature for sustainable electricity, renewable energy or power production. hydroelectric, bridge or aerial view of river, waterfall or flood gate in canada - 水力發電 個影片檔及 b 捲影像00:12再生能源
drone, dam and lake of water in nature for sustainable energy, electricity and power production outdoor. hydroelectric, bridge and aerial view of river, waterfall and engineer walk on architecture - 水力發電 個影片檔及 b 捲影像00:07
aerial view of mcnary dam on the columbia river between oregon and washington state. - 水力發電 個影片檔及 b 捲影像00:19美國
ms aerial ds zo view over concrete arch gravity of buffalo bill dam / wyoming, united states - 水力發電 個影片檔及 b 捲影像00:11再生能源, 美國
aerial view, dam and lake of water in nature for sustainable electricity, renewable energy or power production at reservoir hydroelectric, bridge and drone of river, waterfall or flood gate in canada - 水力發電 個影片檔及 b 捲影像00:06
female engineer working in hydroelectric dam. ecology orientated. renewable energy systems. - 水力發電 個影片檔及 b 捲影像00:32
ms aerial ds view of vaal dam's flood gates / bloemfontein, free state, south africa - 水力發電 個影片檔及 b 捲影像00:26再生能源
mid adult asian male engineer in a white helmet working with a digital tablet and showing recorded information to his coworker female who using radio communication at the hydroelectric dam to report water level, and performance to team. clean energy - 水力發電 個影片檔及 b 捲影像00:14
drone, dam and river of water in nature, flowing by gate for energy and electricity or power outdoor in industry. hydroelectric, bridge and aerial view of lake, waterfall and architecture in canada - 水力發電 個影片檔及 b 捲影像00:05
a revealing rising forward track drone/aerial view of a dam and reservoir in the scottish highlands - 水力發電 個影片檔及 b 捲影像00:19
hydroelectric dam, engineer and drone on bridge for water, clean power and sustainability in nature. wall, person and renewable energy for ecology, environment or change with electricity production - 水力發電 個影片檔及 b 捲影像00:12
aerial drone tilt up shot of dam and beautiful lake amidst mountains during autumn - 水力發電 個影片檔及 b 捲影像00:14
renewable energy engineers are actively discussing over laptop at wind farm, pointing out details on screen. green ecological power generation wind sustainable energy. - 水力發電 個影片檔及 b 捲影像00:06
maintenance female engineer working in hydroelectric power station. renewable energy systems. - 水力發電 個影片檔及 b 捲影像00:16
aerial view, dam and lake of water flow at gate for sustainable electricity, renewable energy or power production outdoor. hydroelectric, bridge or drone of river, waterfall or architecture in canada - 水力發電 個影片檔及 b 捲影像00:05
ecologist and engineer supervises dam operations using laptop and radio communication for efficiency. concept of environmental conservation - 水力發電 個影片檔及 b 捲影像00:16
female engineer working in hydroelectric dam. ecology orientated. renewable energy systems. - 水力發電 個影片檔及 b 捲影像00:37
drone, dam and lake of water in power production, renewable energy or sustainable electricity outdoor in nature. hydroelectric, bridge or aerial view of river, waterfall or flood gate in south africa - 水力發電 個影片檔及 b 捲影像00:10無人機角度
maintenance engineers working in hydroelectric dam. ecology orientated. renewable energy systems. - 水力發電 個影片檔及 b 捲影像00:26
aerial shot of xin'anjiang hydropower station,thousand island lake,hangzhou,zhejiang province,china,asia. - 水力發電 個影片檔及 b 捲影像00:11
aerial drone view of gabcikovo dam, gates and hydroelectric power plant on danube under sky at sunset, hungary - 水力發電 個影片檔及 b 捲影像00:23
wide shot time lapse clouds in blue sky over hoover dam and lake mead on border of nevada + arizona - 水力發電 個影片檔及 b 捲影像00:40