毎日一題 第93題】2017.6.1
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可燃物質の空気中の濃度が爆発限界を超えても、爆発することはなく、燃焼する可能性がある。(判断問題)答え:正解http://bbs.hcbbs.com/static/image/hrline/4.gif
海川ネットのメーデー特別イベント「記憶しよう・栄光の瞬間」まとめスレッド
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(出典:海川化工フォーラム)
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