13.14×100^0.33≥0.694v+v^2/254(0.4-0.03) +5
    13.14×100^0.33≥0.694v+v^2/254(0.4+0.03) +5
    13.14×100^0.33≥0.694v+v^2/254(0.4+0) +5
    (-0.0017v+0.832)×18.253×(200^0.329)≥v*2.5/3.6+v^2/101.6+5
    (-0.0017v+0.832)×18.253×(100^0.329)≥v*2.5/3.6+v^2/101.6+5
    (-0.0017v+0.832)×18.253×100^0.329≥v*2.5/3.6+v^2/101.6+5
    12.69×800^0.33≥v*2.5/3.6+v^2/101.6+5
    12.69×500^0.33≥v*2.5/3.6+v^2/101.6+5
    12.69×200^0.33≥v*2.5/3.6+v^2/101.6+5
    12.69×100^0.33≥v*2.5/3.6+v^2/101.6+5
    (-0.0017v+0.832)×18.253×200^0.329≥v*2.5/3.6+v^2/101.6+5
    x^2*e(5^2/(5^2-x^2))<=2
    2x≦2
    (20+m)^2>48(12+m)
     16+8t-1 > 4+4t-1 > -2t-1
    x^3-3>0
    3x+5×0≤25
    3×0+5y≤25
    x-4×0≤-3
    {51x+2xx>1500 {x>0

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