问答题X 纠错
①y1=0.01; y2=y1(1-η)=0.01(1-0.9)=0.001
L.G=(y1-y2)/x1,x1=(y1-y2)/(L/G)=(0.01-0.001)/1.5=0.006
②HOG=G/Kya=100/(0.785×0.52×3600)/0.1=1.415m
NOG=1/(1-S)ln[(1-S)y1/y2+S]; S=m/(L/G)=1/1.5=0.667
NOG=4.16; h=HOG×NOG=1.415×4.16=5.88m
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