A three-species ratio-dependent predator-prey model with time delays is investigated, conditions are given for persistence of the system.
研究了一类具有时滞的基于比率型三种群捕食者-食饵系统，给出了系统持续生存的条件。
A three-species ratio-dependent predator-prey model with time delays is investigated, conditions are given for persistence of the system.
研究了一类具有时滞的基于比率型三种群捕食者-食饵系统，给出了系统持续生存的条件。
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