【毎日一問】理論基礎 2019.12.29
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穴埋め問題：同じ厚さの2種類の材料を断熱材として使用する場合、良好な断熱効果を得るために、通常は（ ）の材料を内層にする。 答え：熱伝導率が低いヒント：問題解決の過程を説明できた場合は追加報酬を授与します。答えはこちらに！
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