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__    __     ___      _  _     _____    ______   
\ \\ / //   / _ \\   | \| ||  |  ___|| |      \\ 
 \ \/ //   / //\ \\  |  ' ||  | ||__   |  --  // 
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    `     `-`   `-`  `-` -`   `-----`  `------`

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發送短信 : Simulation on PCM melting enhancement with double-fin length arrangements in a rectangular enclosure induced by natural convection