(22*0.22)/2*（2/3*0.22）+(（32.75+62.48）*3.4)/2*[2/3*3.4*(2*32.75+62.48)/(32.75+62.48)+1.1]
    （19.8*2.9+20*2.1+22*0.9）*3+2*22*1.73
    (20+18.0×1.6+19.2*2.4+19.8*5.2+20*2.1+22*0.9)*0.33-2*20*0.58
    (20+18.0×1.6+19.2*2.4+19.8*5.2+20*2.1)*0.33-2*40*0.58
    (20+18.0×1.6+19.2*2.4+19.8*5.2+20*2.1)*0.52-2*40*0.72
    (20+18.0×1.6+19.2*2.4+19.8*5.2)*0.52-2*54*0.72
    (20+18.0×1.6+19.2*2.4+19.8*2.9)*0.61-2*31*0.87
    (20+18.0×1.6+19.2*2.4+19.8*2.3)*0.61-2*31*0.87
    (20+18.0×1.6+19.2*2.4+19.8*2.3)*0.61-2*54*0.87
    (20+18.0×1.6+19.2*2.4+19.8*5.2)*0.61-2*54*0.87
    (20+18.0×1.6+19.2*2.4)*0.61-2*31*0.87
    (20+18.0×1.6+19.2*2.4)*0.61-2*31.0*0.78
    (20+18.0×1.6)*0.61-2*10*0.78
    (20+18.0×1.6+19.2*2.4)*0.61-2*10*0.78
    56+78
    20×0.7-2×10×0.84
    20×1.6-2×10×0.84
    280.67×6.6-1/2×6.02×0.7×6.62-1/6×18×0.7×6.63
    (8.41×0.7)/2×（2/3×0.7）+(（-36.9-1.64）×4.1)/2×[2/3×4.1×(-2×36.9-1.64)/(-36.9-1.64)+0.7] -1.64x（x/2+4.8）+(10.89x^2)/2（2/3 x+4.8）=126.77x(x/2+4.8)+(58.27x^2)/2(2/3 x+4.8)
    (8.41×0.7)/2×（2/3×0.7）+(（-36.9-1.64）×4.1)/2×[2/3×4.1×(-2×36.9-1.64)/(-36.9-1.64)+0.7] -1.64x（x/2+4.8）+(4.42x^2)/2（2/3 x+4.8）=126.77x(x/2+4.8)+(23.62x^2)/2(2/3 x+4.8)

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