(12.99×10^3×125000)/(8333330×100)
    0.6×28.21×0.725+0.617×1.61×0.725
    (1.63×10^6)/166667
    0.1×28.21×〖0.725〗^2+0.177×1.61×〖0.725〗^2
    1.1×1.3×(1.0+0.52+130)×0.15
    1.1×1.5×(2.5+4)×0.15
    1.0×[1.0×(1.0+0.52+130)+1.0×(2.5+4)]×0.15
    1.1×1.3×(1.0+0.52+130)×0.2
    (7.5×10×9×0.1×0.1)/(1.3×10)
    15+18.6×9.7+19.2×（18-9.7-0.5）
    15+18.6×9.7
    345.18×0.34-2×13.3×√0.34
    24.18+19.2×（17.5-9.7）
    15+18.6×9.7+19.2×（18-9.7-0.5）
    0.677×(137.5×150^4)/(100×9896×281250)
    (0.46×10^6)/37500
    0.1×187.33×〖0.15〗^2+0.177×10.73×〖0.15〗^2
    0.677×(137.5×200^4)/(100×9896×281250)
    (0.83×10^6)/37500
    1/1.69

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