(299.61×14+306.02×9+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    (207.56×16+415.80×9+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    (245.23×15+266.13×10+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    (245.23×15+370.90×9+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    (207.56×16+497.55×9+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    (207.56×16+357.00×10+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    (207.56×16+193.24×13+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    (207.56×16+228.12×12+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    (207.56×16+278.36×11+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    (224.83×15.5+245.88×11+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    (245.24×15+207.49×11+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    6.3/0.7
    6.3/0.3
    5/8：7/4=
    6.8+3.44=
    (62*3.14^2*27.5*11.126^2*9.45^2)/153-1512*217120/(153*9.45^2)
    (62*3.14^2*27.5*11.063^2*9.45^2)/153-1512*217120/(153*9.45^2)
    (62*3.14^2*27.5*10.999^2*9.45^2)/153-1512*217120/(153*9.45^2)
    (62*3.14^2*27.5*10.936^2*9.45^2)/153-1512*217120/(153*9.45^2)
    (62*3.14^2*27.5*10.872^2*9.45^2)/153-1512*217120/(153*9.45^2)

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