The sufficient conditions for the persistence and bound of a prey-predator system with time delay were obtained via the comparison theorem.The numerical simulation result of population model was obtained with the Matlab software.%利用比较定理给出了具有时滞的捕食-被捕食模型的有界性和一致持久性的充分条件,利用Matlab软件给出了种群模型的数值模拟结果.
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