-390+390*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.5^2-1)
    （tan65）^2×e^(πtan40)
    -380+380*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.5^2-1)
    -370+370*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.5^2-1)
    -360+360*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.5^2-1)
    -350+350*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.5^2-1)
    -340+340*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.5^2-1)
    -330+330*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.5^2-1)
    -320+320*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.5^2-1)
    tan60×e^(πtan6)
    -310+310*0.05^2/(0.1^2-0.05^2)*(0.1^2/0.5^2-1)
    (1963000×414.14-(1-0.5×0.372)×0.372×1.0×14.3×500×465^2)/(360×(465-35))
    tan60×e^(πtan30)
    (19.8*1.79+20*1.3+22*4.41)/7.5
    2.85*1.25/1.105+2.85*1.25^2/1.105^2+2.85*1.25^3/1.105^3+5.82/1.105^4+101.31/1.105^4
    (0.5×14.3×500×500)/(1235.38×10^3 )=
    (19.4*1.79+19.2*2.9+19.8*3.4+20*1.3+22*4.41)/13.8
    5+5
    (（19.8*1.3+20*2.5+22*1.8+24*1.2×0.044+15×0.86)/(（19.4*1.7+19.2*3.1+19.8*3+20*2.5+22*1.8+24*1.2）+20)
    (0.044-1)×1/(tan40)

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