Hukou Waterfall is the second largest waterfall in China，largest waterfall in the world [3-7]。The Yellow River flows here，Sheer cliffs on both sides of the bank，The mouth of the river is as narrow as the mouth of a pot，Hence the name Hukou Waterfall。The water surface of the Yellow River upstream of the waterfall is 300 meters wide.，Within a distance of less than 500 meters，Compressed to a width of 20-30 meters。1000 cubic meters/Seconds of river water，Pouring from a cliff more than 20 meters high，Forming the spirit of "harvesting a thousand miles of Yellow River in one pot"。 [2]

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