78乘0.5－0.5x
    x=（14+2*cos37）
    x=arctan（48/7）
    (t*1-0.96999999999999999)^2+(t*0-1)^2-1^2=0
    X=70453-(497+17.8%X)
    X=72688-(497+17.8%X)
    X=72688-(518+17.8%X)
    X=68962-(497+17.8%X)
    X=68962-(621+17.8%X)
    X=71943-(621+17.8%X)
    X=71943-(552+17.8%X)
    X=71943-(535+17.8%X)
    X=71943-(518+17.8%X)
    X=60765-(518+17.8%X)
    X=60765-(530+17.8%X)
    (18+x)÷（48+x）=0.4
    385*22*180+（350-x）*385*8=385*12*180+x*8*385+700*150*6.5+2261.9*448
    0.36764047x^2-117.2988155x+15838.57776=0
    (X*92%)+(X*92%*6%)=1322934.29
    1/(d+1)+1/(d+2)+1/(d+5)=0

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