Inside the fish farm, the waterwheel is the most beautiful and impressive scenery. The waterwheels continually pat on the water, bring the air into water, and increase the oxygen content. They bear the life and death of fish. Therefore, the electric power cut is always the nightmare of fishermen. In order to keep the waterwheels working, the diesel generators are the necessaries of fish farms. If any accident of electric power cut happens, fishermen will start the diesel generators as soon as possible. Otherwise, the whole pond of fish may die within two hours.
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