（558*0.000539176*1568*V^2+0.41*928*558+490*0.000539176*11395^3*V^2/(720*V-1568)^2/10000＜130
    （558*0.000539176*1568*V^2+0.41*928*558+480*0.000539176*11395^3*V^2/(720*V-1568)^2/10000）＜127.9
    （590*0.000539176*1568*V^2+204317.76+480*0.000539176*11395^3*V^2/(720*V-1568)^2/10000＜126.4
    （558*0.000539176*1568*V^2+204317.76+480*0.000539176*11395^3*V^2/(720*V-1568)^2/10000＜126.4
    （（537*0.000539176*1568*V^2+204317.76+480*0.000539176*11395^3*V^2/(720*V-1568)^2/10000）＜126.4
    （537*0.000539176*1568*V^2+204317.76+480*0.000539176*11395^3*V^2/(720*V-1568)^2）/10000＜126.4
    (d—1)×20.4×3.690＋2×0×1.921=[30＋1.5×18.5＋1×18.4＋4×18.9＋4.5×19.2＋2.8×19.5＋(d—1)×20.4]<0.271—2×0×0.414
    3.5x>50+x
    x+1/x＞500/3
    1/(x+1)(x-2) < 0
    (x^2+2x-6)/(x+2)>3
    (x^2+2x-6)/x+2>3
    0.5*sqrt(16-x)+0.5sqrt(4-x)>=2
    4x+6<=6x-3
    a^2+0.7*a+0.1>=33.16
    45.247≤22400*x*（214-x/2）
    45.247≤22.4×1000×X×（214-x/2)
    80x≥160(750-x)
    1.0*41.898≤22.4*1000*1*X（0.20305-X/2）
    9*8^x<5*(2^(2*x+3)-2^(x+1)-1)

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