1.0×[1.0×(0.75+0.38+65)+1.0×(2.5+4)]×0.2
    1.1×1.3×(0.75+0.38+65)×0.2
    (7.5×47×2.6×0.1×0.1)/(2.6×9.25)
    0.677×(72.25×200^4)/(100×9896×281250)
    (0.45×10^6)/37500
    0.1×94×〖0.2〗^2+0.177×10.73×〖0.2〗^2
    1.0×[1.0×(0.75+65)+1.0×(2.5+4)]×1
    1.1×1.3×(0.75+65)×1
    (784.4×10^3)/(0.976×15632.56×215)
    (33.6×10^6)/(1×401600×215)
    (46.3×10^6)/(1×401600×215)
    1.07-〖53.7〗^2/(44000×〖√(235/235)〗^2 )
    2376/44.27
    (54.8×10^6)/(0.85×401600×215)
    1.07-〖98.92〗^2/(44000×〖√(235/235)〗^2 )
    1.116×353.8
    1045.6/(1.8×1.8)
    1/2 (353.8+321.8)×0.45×1.8
    (66.1×10^6)/(0.9×360×739)
    1/12×〖0.45〗^2×[(2×1.8+1.8)(381.9+349.9-(2×1.35×0.8×26)/(1.8×1.8))+(381.9-349.9)×1.8]

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