【正确答案】t_wi≈133.3℃，t_a=0℃，r_i=0.097m，r₀=0.127m
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α_T=9.4+0.052(t_w-t_a)
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解得：t_w=15.9℃
α_T=9.4+0.052×(15.9-0)=10.23[W/(m²·K)]
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