（19.8*2.9+20*2.1+22*0.9+24*3.1）*4.6+2*22*2.14
    (22*0.22)/2*（2/3*0.22）+(（38.72+61.60）*3.4)/2*[2/3*3.4*(2*38.72+61.60)/(38.72+61.60)+1.1]
    （19.8*2.9+20*2.1+22*0.9+24*5.3）*4.6+2*22*2.14
    (20+18.0×1.6+19.2*2.4+19.8*5.2+20*2.1+22*0.9+24*5.3)*0.22-2*25*0.47
    (20+18.0×1.6+19.2*2.4+19.8*5.2+20*2.1+22*0.9)*0.22-2*20*0.46
    2÷3×14.3×502400×400×（sin（0.35π））^3÷3.14+360×25132×334×(sin（0.35π）+sin(0.55π))÷3.14
    (（0.36×14.3×502400）+(1.25×360×25132））/（1.7×14.3×502400+3×360×25132）
    2÷3×14.3×502400×400×（sin（0.33π））^3÷3.14+360×25132×334×(sin（0.33π）+sin(0.59π))÷3.14
    4*【（{√3+√2}/2）^2-（{√3-√2}/2）^2】
    2÷3×14.3×502400×400×（sin（0.33π））^3÷3.14+360×16084×334×(sin（0.33π）+sin(0.59π))÷3.14
    (0.36×14.3×502400+1.25×360×16084)/(1.7×14.3×502400+3×360×16084)
    (0.36×14.3×502400+1.25×360×9812.5)/(1.7×14.3×502400+3×360×9812.5)
    (0.36×14.3×5.024+1.25×360×0.16084)/(1.7×360×50.24+3×360×0.16084)
    (0.36×14.3×50.24+1.25×360×1.6084)/(1.7×360×50.24+3×360×1.6084)
    (0.36×14.3×50.24+1.25×360×1.6084)/(1.7×360×50.24+3×360×16084)
    (0.36×14.3×50.24+1.25×360×1.6,084)/(1.7×360×50.24+3×360×1.6,084)
    (0.36×14.3×502400+1.25×360×16,084)/(1.7×360×502400+3×360×16,084)
    24/0.7
    (20+18.8×1.5+18.8×6.7)×3.54+2×0×√3.54
    (20+18.8×1.5)×3.54+2×0×√3.54

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