Although ultra-low temperature (ULT) freezers are specifically designed to work between -86°C and -45°C, they often work at a set temperature of -70°C or -80°C. These freezers can last for about 12 to ...
The modern air conditioning system cools an indoor space by using the refrigeration cycle. This refrigeration cycle works by controlling the level of energy in the system’s refrigerant: Some parts of ...
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