General Solution T (x,t) r, OT,(x,t)d pcp Ox x=0, T,=0 x=L, T,=0 t=0, Tn=Tb-T。-TGeneral Solution (,) (,) ( ) n n p T xt T xt c k txx ρ ∂ ∂ ∂ = ∂∂ ∂ 0, 0 , 0 n n x T xL T = = = = 0, nb w t T TT T = =−− ∞ (,) T xt n