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If a truck can carry 10 to 16 boxed refrigerators, then what is the least number of refrigerators that 4 trucks can carry?
The evaporator used in household refrigerators is
A survey of City A found an average of 3.2 people per household and an average of 1.2 DVD players per household . If 48,000 people live in City A, how many DVD players are there in City A?
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The commonly used coolant in refrigerators is
The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and
Refrigerants commonly used for domestic refrigerators are
Most of the domestic refrigerators work on the following refrigeration system
Refrigerators keep food unspoiled because ---
In refrigerators, the temperature difference between the evaporating refrigerant and the medium being cooled should be