【正文】
謝謝觀看 /歡迎下載 BY FAITH I MEAN A VISION OF GOOD ONE CHERISHES AND THE ENTHUSIASM THAT PUSHES ONE TO SEEK ITS FULFILLMENT REGARDLESS OF OBSTACLES. BY FAITH I BY FAITH 。 阻力系數(shù)= mH2O /1000m 求該管段的水頭損失 H4=Hy+Hj Hj=25% Hy Hy=L i=148 mH2O /1000m = H4=Hy+Hj== mH2O H=H1+H2+H3+H4 以知: A點(diǎn)地面標(biāo)高 ,C點(diǎn)為 則: H1== H2+H3按規(guī)定二層樓房取 12 mH2O