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Yellow River xiaolangdi reservoir sand, speeds up to 3,500 cubic metres of water used to wash. In the first four times in the scouring action, some some 300 million tons of sand from being washed into the sea in the lower reaches of the Yellow River. Source: United States the national geographic pho

The Yellow River Xiaolangdi reservoir turns on the water flushes the sand, the speed reaches each second 3500 cubic meter water to use for to flush.In first four times flushes in the sand motion, some 300,000,000 ton Yellow River downstream sand is broken in approximately the sea.Origin: US "Nationa

xiaolangdi multi reservoir water washed sand, speed up to 3500 cubic meters of water used for flushing. In the former 4 sand flush operation, about some 300 million tons of the lower reaches of the Yellow River sand was washed into the sea. Source: The United States National Geographic photographer:

Yellow River xiaolangdi reservoir sand, speeds up to 3,500 cubic metres of water used to wash. In the first four times in the scouring action, some some 300 million tons of sand from being washed into the sea in the lower reaches of the Yellow River. Source: United States the national geographic pho