Describir: Modern refrigeration and air conditioning

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 | ' //   | / \ || | |  \ ||   -| ||-  | |/\| || | || | || | || | ||  | / \ || 
 | . \\   | \_/ || | |__/ ||   _| ||_  |  /\  || | \\_/ || | \\_/ ||  | \_/ || 
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