工芸基礎知識（選択問題）20180411
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ウォーターリングポンプが達成できる最大圧力は、主にに依存します。A. インペラの寸法と回転速度 B. 原動機の出力 C. 密封性能 D. 構造強度
ウォーターリングポンプが達成できる最大圧頭は、主にAに依存します。A. インペラのサイズと回転速度
ガンはAです
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