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工芸基礎知識(選択問題)20181209

2018-12-09View Original

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工芸基礎知識(選択問題)20181209 ポンプのネプラスH ポンプのNPSHとは、ポンプの入口にある単位重量あたりの液体が持つ、気化圧力を上回る余分な機械的エネルギーのことです。 a 正解 b 誤答

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