7609+12595+12670+7872
    138857.4/17.64
    0.150×12×77143
    0.35/(2+0.35)=
    (27000+27000)/(2×77143)=
    224023.272/17.64
    0.242×12×77143
    0.64/(2+0.64)=
    (27000+27000+22222+22222)/(2×77143)=
    222171.84/17.64
    0.240×12×77143
    0.63/(2+0.63)=
    (25962+25962+22222+22222)/(2×77143)=
    2-2390
    134228.82/17.64
    2/2390
    0.145×12×77143
    0.34/(2+0.34)=
    (25962+25962)/(2×77143)=
    arctan（9.6÷6.2）

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