A delayed discrete predator-prey system with general functional response is investigated.
研究了一类离散时滞具一般功能性反应的捕食-食饵系统,运用重合度理论中的延拓定理得到了系统至少存在一个正的周期解的充分条件。
The functions of the national university science park are divided into basic function,general function and special function.
国家大学科技园的功能分为基本功能、一般功能和特殊功能。
Facing the coming of the 21st Century,how to reform the school physical culture to satisfy the reguirement of talents for the socialist market economy?the paper expounds the essential function of school physical culture and its general function based on this premise.
对学校体育的本质功能,并在本质功能的前提下对一般功能进行了阐述,在此基础上提出了学校体育教育应改变过去以竞技或以锻炼身体为中心,而转到以培养合格“人”为中心上来,使学校体育教育更好地为培养跨世纪的全面发展人才服务。
