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工芸基礎知識(選択問題)20180510

2018-05-10View Original

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この投稿は最後にHP0377によって2018-5-10 07:50に編集されました。工程基礎知識(選択問題)20180510 遠心ポンプの電流を下げるものは 。 A. 排出圧力の上昇 B. 流量の増加 C. 回転速度の上昇 D. 排出管の破損 ヒント:前者は流量を減少させ、後者3つはすべて流量を増加させる。

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