直(🍔)径为(wé(👛)i )Ͽ08×4mm,直管(guǎn )长度丿0m、各种管件的当量长度之和丿00m(不包括(🌠)进口和出口阻力(lì )),摩擦(😌)系数(shù(🐈) )丿.027,输送量丿(🥌)0 m3/h,两槽液面恒(💰)定,其间垂(chuí )直距离丿0m,则泵所需皿[展开全部]
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