[請益] 請問關於熱輻射
為甚麼在考慮輻射時
只考慮物體表面的熱輻射,而不考慮物體內部呢?
假如熱輻射的傳遞不需要介質,那麼物體內部豈不是有無限多個表面可以輻射?
抱歉才疏學淺,希望有人能回答
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※ wowow2005:轉錄至看板 Physics 10/03 09:56
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