2. practical implications:-To meet the cooling requirements of the sultry summer days.3. The new point:-Cooling capacity more quickly.4. research objectives:-Generate a cooling air from the equipment available with low prices.5. research methods:-Use observer methods, experimental analysis.IV. some main results:-After the experimental process results: speed to cool more quickly, ensure safety and low price than the same device working in practice.V. conclusion:The product met the requirements: safety, speed, low cost fast cooling.
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