正周期 meaning in Chinese

positive period

Periodic function and its least positive period
周期函数及其最小正周期
Periodicity in predator - prey chain sytem of three species with impulse
食饵链系统正周期解的存在性
The global existence of periodic solution of a competition lotka - volterra model
系统正周期解的存在性
Studied periodic function and its least positive period
摘要研究了周期函数及其最小正周期的若干问题。
The existence of the periodic solution of a lotka - volterra system with impulses
系统的正周期解的存在性

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