8=-5.176/0.000137^2ln[1-(0.218515x/5.176(1.595-0.000137))]-x/0.000137
    7=-5.176/0.000137^2ln[1-(0.218515x/5.176(1.595-0.000137))]-x/0.000137
    6=-5.176/0.000137^2ln[1-(0.218515x/5.176(1.595-0.000137))]-x/0.000137
    4=-5.176/0.000137^2ln[1-(0.218515x/5.176(1.595-0.000137))]-x/0.000137
    3=-5.176/0.000137^2ln[1-(0.218515x/5.176(1.595-0.000137))]-x/0.000137
    2=-5.176/0.000137^2ln[1-(0.218515x/5.176(1.595-0.000137))]-x/0.000137
    1=-5.176/0.000137^2ln[1-(0.218515x/5.176(1.595-0.000137))]-x/0.000137
    0=-5.176/0.000137^2ln[1-(0.218515x/5.176(1.595-0.000137))]-x/0.000137
    x^2*ln(0.4*3.777/x/1.695)/((1-x)^2)/ln(0.6*3.777/6.193/(1-x))=1
    5=-5.176/0.000137^2ln[1-(0.218515x/5.176(1.595-0.000137))]-x/0.000137
    979-6（6x-163）=2755-6（10x+125）
    979-6（6x-169）=2755-6（10x+125）
    979-6（6x-1693）=2755-6（10x+125）
    x*x*x-x*x-2=0
    110.7×7.93+12.13x=（110.7+x）×7.98
    x＝8log2 x
    x^2*ln(0.8*1.867/x/1.695)/(1-x)^2/ln(0.2*1.867/6.193/(1-x))=1
    x^2*ln(0.8*1.867/x/1.695)/(1-x)^2/ln(0.2*1.867/(1-x)/6.193)=1
    2X-X-X+X=6
    （120000-x）/120000=0.1

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