【毎日一題 第130題】2020年5月9日
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【毎日一問 第130問】2020年5月9日 レイノルズ数が2000を超えると、流体の流れ方は乱流となる。 判断問題（） 2日以内に解答してください。
間違い、4000を超えると乱流です
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