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工芸基礎知識(選択問題)20180428

2018-04-28View Original

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この投稿は最後にHP0377によって2018-4-28 07:26に編集されました。工程基礎知識(選択問題)20180428:曲がり管用シールリングは主に遠心ポンプで使用されます。 A. 圧頭が高い B. 流量が大きい C. 両吸式 D. 効率が高い ヒント:高揚程ポンプでは曲がり管型シールリングを使用することで漏れ量を減らすことができる。

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