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给出带有时滞的一类固定资产投资模型，此模型为含有非局部和时滞边界条件的分布参数系统．运用泛函分析和积分方程理论，证明了系统解的存在唯一性，得到解的解析表达式，进而讨论了解的稳定性．
A type of fixed asset investment model with time delay is given. This model is a distributed parameter system with non-local and time-delay boundary conditions. The functional analysis and integral equation theory are used to prove the existence and uniqueness of the system solution. The analytic expression of the solution is obtained, and then the stability of the solution is discussed.