Mid-color video for a group of early edge dam and pari-mutuel pattern, characterized by bilateral dam modeling novel, rich colors. The dam while dozens of attractions, was 3-4 echelon topology, while dam on the shallow pools of stagnant water, the spillway has not flake, surface calm, reflects the upper edge of the dam and the sky, like the blue sky and white clouds floating around, the booths were covered up with the Mid-color.