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Posted: 8/7/2012 7:59:24 PM
THE IMAGE ABOVE IS A PAID ADVERTISEMENT I understand the compression-heating......expansion-cooling fundamentals but that's it. Thank you. |
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Posted: 8/13/2012 9:23:15 PM
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Posted: 8/13/2012 9:30:17 PM
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Posted: 8/13/2012 11:18:13 PM
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