residential homes stand in williston, north dakota, us, on february 11 wide shots and close up of a silhouette of a small home on the side of the... - 曝氣器 個影片檔及 b 捲影像01:06
wastewater treatment wheel aerator add oxygen into water. solar cell green energy - 曝氣器 個影片檔及 b 捲影像00:16
wastewater treatment wheel aerator add oxygen into water. solar cell green energy - 曝氣器 個影片檔及 b 捲影像00:15
wastewater treatment wheel aerator add oxygen into water. solar cell green energy - 曝氣器 個影片檔及 b 捲影像00:16
wastewater treatment wheel aerator add oxygen into water. solar cell green energy - 曝氣器 個影片檔及 b 捲影像00:14
wastewater treatment wheel aerator add oxygen into water. solar cell green energy - 曝氣器 個影片檔及 b 捲影像00:17
wastewater treatment wheel aerator add oxygen into water. solar cell green energy - 曝氣器 個影片檔及 b 捲影像00:13
wastewater treatment wheel aerator add oxygen into water. solar cell green energy - 曝氣器 個影片檔及 b 捲影像00:15
water aerator wheel rotating in a green pond covered with water hyacinth plants under daylight - 曝氣器 個影片檔及 b 捲影像00:10
water aerators operating in a fish pond with green water hyacinth plants in the foreground sunlight - 曝氣器 個影片檔及 b 捲影像00:07
industrial water aerator splashing surface in a pond for oxygen enrichment under sunlight - 曝氣器 個影片檔及 b 捲影像00:08
drone view of municipal water reclamation plant ponds with rotating surface aerators - 曝氣器 個影片檔及 b 捲影像00:27
aerial perspective of mechanical aeration process in wastewater treatment lagoons - 曝氣器 個影片檔及 b 捲影像00:19
wide aerial view of modern sewage treatment facility with symmetrical pond layout and active aeration - 曝氣器 個影片檔及 b 捲影像00:16
aerial drone shot of industrial wastewater treatment ponds with surface aerators operating in real-time - 曝氣器 個影片檔及 b 捲影像00:08
warm weather in london's kensington gardens/ hyde park; england: london: st. james's park:extvarious gvs of pond with water aerator fountain and... - 曝氣器 個影片檔及 b 捲影像01:26
a solar powered water aerator floats on a lake, splashing water to increase oxygen levels and improve water quality, representing renewable energy use, sustainable aquaculture, and eco friendly environmental management. - 曝氣器 個影片檔及 b 捲影像00:18
a solar powered water aerator floats on a lake, splashing water to increase oxygen levels and improve water quality, representing renewable energy use, sustainable aquaculture, and eco friendly environmental management. - 曝氣器 個影片檔及 b 捲影像00:20