Permanence and Positive Periodic Solution of n-Species Nonautonomous T-Periodic Lokta-Volterra Competition System with Feedback Controls是什么意思_Permanence and Positive Periodic Solution of n-Species Nonautonomous T-Periodic Lokta-Volterra Competition System with Feedback Controls在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句