(π^2×2.06×10^5×20407.8)/〖17.80〗^2
    1.259-1.146
    1.259-(1.146+1.155)/2
    (1336×10^3)/(0.982×20407.8×215)+(1.0×31.6×10^6)/(1.15×4102761.36×(1-(0.8×1336)/119050.29)×215)
    (π^2×2.06×10^5×20407.8)/(1.1×〖17.80〗^2 )
    5110/287.099
    0.7×7300
    1.526-1.396
    (920.5×10^3)/(0.993×13185.9×215)+(1.0×265.0×10^6)/(1.15×2522392.1×(1-(0.8×920.5)/203633.59)×215)
    (π^2×2.06×10^5×13185.9)/(1.1×〖10.94〗^2 )
    2620/239.559
    4.725-(2.308+1.830)/2
    (33.6×10^3)/(0.971×4851.9×215)+(1.0×41.6×10^6)/(1.15×401449.28×(1-(0.8×33.6)/14843.02)×215)
    (π^2×2.06×10^5×4851.9)/(1.1×〖24.58〗^2 )
    2500/101.70
    2500/41.352
    3.518-(2.618+3.105)/2
    1/2×1.25×〖31.05〗^2×0.5×0.426
    1/2×1.25×〖31.05〗^2×0.5×0.82
    1/2×1.25×〖31.05〗^2×2.05×2×0.010

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