（36+1.5）/2×10/（0.86）/2
    （36+1.5）/2×10/（0.7）/2
    15000/25.4
    0.2+0.5*0.589^2
    4*3.14/3（12.5*12.5*12.5*2.646+3.25*3.25*3.25*140）
    4*3.14/3（12.5*12.5*12.5*3.5+3.25*3.25*3.25*89）
    8.93*12.5*12.5*12.5*2.364/(7.845*3.25*3.25*3.25*153)
    0.05+0.9*0.52777^2
    8.93*12.5*12.5*12.5*2.646/(7.845*3.25*3.25*3.25*139)
    8.93*12.5*12.5*12.5*2/(7.845*3.25*3.25*3.25*139)
    8.93*12.5*12.5*12.5*3.5/(7.845*3.25*3.25*3.25*89)
    (41379-8177*1.949)/144
    (41379-8177*2.136)/144
    30*1.01^200
    10*1.01^200
    10*1.02^200
    (41379-8177*3)/144
    (41379-8177*2.364)/144
    (41379-8177*2.6)/144
     (41379-8177*3)/144

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