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In fact, for those living alone, large refrigerated storage space is not necessary in daily life. However, party or buying more things may occur at ordinary times, so more storage space will be needed in a short period of time. "Alternatve", through the temperature conversion of the lower part of the space, will increase and decrease the volume of the refrigerator.
Tianjin polytechnic university
Tianjin Polytechnic University
Tianjin University of Finance and Economics