2/3/3.1415926*11.9*502700*400*(sin(3.1415926*0.14*0.14))^(3)
    300*3619.11*354/3.1415926*(sin(3.1415926*0.14)+sin(3.1415926*0.97))
    2/3/3.1415926*11.9*502700*400*(sin(3.1415926*0.14))^(3)
    1081.53-270.38
    1081.53×25%
    20000-18918.47
    16516.58+40+32.54+285+800+200+1000+21.85+22.50
    2*11900*0.5027*0.4*((sin(3.14*0.14)^3)/3.14/3
    1487×10^（-3）=
    2*11900*0.5027*0.4*((sin(3.14*0.14))^3)/3.14/3+300000*0.00338664*0.353*((sin(3.14*0.14)+sin(3.14*0.97))/3.14)
    2*11900*0.5027*0.4*((sin(3.14*0.14))^3)/3.14/3+300000*0.00338664*0.353*((sin(3.14*0.14)+sin(3.14*0.97))/3.14
    (1.77E-12-1.02704E-12)/3.85041/E-10
    (1.77E-12-1.02704E-12)/3.85041E-10
    (8.29E-13-1.18259E-12)/3.99179E-10
    1.18259E-12
    5+1
    (0.5976704/24}1784.0345^4+(4634.31438/6)(1784.0345-1200)^3-(5392.89215/6)1784.0345^3+7226204381*1784.0345
    (0.5976704/24)1757.951942^4+(4634.31438/6)(1757.951942-1200)^3-(5015.89616/6)1757.951942^3+6488027990*1757.951942
    5*1/2-6*1/16+1/8
    (-25^(3/2))

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