sin（0.32*3.14）* （0.32*3.14）* （0.32*3.14）3.14
    （2/3）*14.3*1000*3.14*0.375*0.375*0.4
    sin0.32*3.14+sin0.61*3.14
    300*5.09*0.375
    0.2*2525.74*（2/3）
    sin（0.32*3.14）＾3/3.14
    14.3*1000*3.14*0.375*0.375*0.4
    0.81*126
    2.53/3.14
    sin0.42*3.14+sin0.41*3.14
    360*0.35
    0.036*2200.20
    sin（0.42*3.14*2）＾3/3.14
    580*0.85
    0.31*2200.20
    sin（3.14*0.42）＾（3.14*0.42）/3.14
    0.67*14.3*3.14*0.35*0.35*0.4*3.89*10^-3+360*2.46*0.35*3.89*10^-3=
    0.67*14.3*3.14*0.35*0.35*0.4*0.012+360*2.46*0.35*0.00637
    42^2
    (2*3.14/0.1)*sin(30/180*3.14)*(-1.8*0.1)

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