He did mention there is energy loss during the process.
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送交者: feelslikespring 于 2007-11-17, 20:10:19:
回答: what i wante to say is that the energy loss wasn't mensioned clearly 由 whoami 于 2007-11-17, 12:29:34:
That should be enough for normal readers. More scientific details may cause more confusion.
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