Equipment to open and close flood gates on backside of dam spillway concrete with cables pulleys gears motors 免版税库存图片 equipment to open and close flood gates on backside of dam spillway concrete with cables pulleys gears motors
一张小水坝或溢洪道的长曝光照片，泥泞的水流过混凝土墙，过渡到下面的湍急漩涡，由带蓝色栏杆的混凝土桥和茂盛的绿色树木构成。 库存图片 一张小水坝或溢洪道的长曝光照片，泥泞的水流过混凝土墙，过渡到下面的湍急漩涡，由带蓝色栏杆的混凝土桥和茂盛的绿色树木构成。
Water surges through the spillway gates of a concrete dam creating powerful whitewater rapids 库存照片 water surges through the spillway gates of a concrete dam creating powerful whitewater rapids
Concrete spillway gates of a dam in thailand this is used for irrigation systems 免版税库存照片 concrete spillway gates of a dam in thailand this is used for irrigation systems
Concrete spillway gates of a dam in thailand this is used for irrigation systems 免版税库存照片 concrete spillway gates of a dam in thailand this is used for irrigation systems
Concrete spillway gates of a dam in thailand this is used for irrigation systems 库存照片 concrete spillway gates of a dam in thailand this is used for irrigation systems
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