[1]Department of MathematicsNanjing University of Aeronautics and Astronautics Nanjing 210016, P. R. China;
[2]Department of Basic CoursesHuaian Vocational College of Information Technology Huaian 223003, P. R. China;
捕食-被捕食模型 扩散 结构 Hopf分支 局部稳定性 控制 收获 时滞;