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【空調版】毎日一問20180531

2018-05-31View Original

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判定:ガスや燃料の蒸気が空気と混ざり、点火源によって高速で燃焼することができる濃度(一般的には体積濃度を指す)の範囲を爆発限界と呼ぶ。通常、ガスのこの濃度範囲は5%~15%です。() 答え:正解

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