工芸基礎知識（選択問題）20181224
Thread Content
渦巻きポンプは遠心ポンプに属します。 a 正解 b 誤答
B~~~~~~~~~~
A、渦巻きポンプは遠心ポンプの特殊な形態に属します
この投稿は最後にhesonchang214によって2018-12-24 10:09に編集されました。aが正解です
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