2x-7<=3(x-2)
    -1<2/3(5-2x)<1/2
    2x-1>=0 4-x>0
    -3x-1>=0 2(4-x)<1
    x/2+1>=5
    x-7<2(8-x)
    ((35-3.289*(4.1077+lnx)-10-0.051*(3.289/x-0.1))*2*3.14*20*6.996*10^(-7)*8.64*10^4)/(-4.107733-lnx)>10
    4*a^2-2*a-4>0
    2*a^2-a-2>0
    x＞1/x
    a＞1/a
    (86400) * ((10 + 3.2891*ln((3.2891 / lamadaH) / 0.1)) - 10 - 0.051 * ((3.2891 / lamadaH) - 0.1)) * (0.000087914 / (ln((((25) / ln(2000)) / lamadaH) / 0.1)))>=10
    ((35-3.289*(4.1077+lnx)-10-0.051*(3.289/x-0.1))*2*3.14*20*6.996*10^(-7)*8.64*10^4)/(3.4904285-lnx)>10
    ((35-3.289*(4.1077+lnx)-10-0.051*(3.289/x-0.1))*2*3.14*20*6.996*10^(-7)*8.64*10^4)/3.4904285-lnx>10
    （x+1）^2-6>0
    3x^2+2x+1/3<0
     26700 + X - X * 10 % / 12 * 3 ≥50000
    -2x^2+6x+2
    x*1.4/0.85<(28000/1.06)
    x*1.3/0.85<(14000/1.06)

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