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範例:線膨脹與米尺

在0oC時以鋼(線膨脹係數為α1)製作一把標準米尺，今在室溫為toC時使用，量得一金屬棒長度為L。已知此金屬的線膨脹係數為α2，則0oC時金屬棒長為何?[88省聯]


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By admin – 2009 年 06 月 23 日

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