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We prove uniform persistence and global attractability bythe comparable theory and constructing Lyapunov function method.

本文第三章中，提出了既具有反馈控制项，又有扩散项和α_i类功能性反应函数的n种群非自治Lotka-Volterra竞争生态系统。

In this paper,the asymptotic property for two kinds of ecological systems and oscillation for solutions of a neutral differential equations is studied by employing differential inequalities and using eigenvalue analysis,iterative algorithm,induction and comparison theorem etc.Here, the system\'s asymptotic property includes the uniform persistence,the global attractability of the solutions,the asmptotic stability of the solutions and the oscillation of solutions.

本文利用微分不等式、特征根分析法、迭代法、归纳法及比较原理等方法和理论，研究了两类生态模型解的渐近性和一类脉冲中立型微分方程解的振动性，其中包括模型的一致持久生存性，正平衡态的全局吸引性、局部与全局渐近稳定性以及解的振动性。

Firstly, The sufficient con-ditions of the existence and uniquity of the positive equlibria by applying functional derivative isobtained; Secondly, the global attractability of the positive equlibria is investigated by charateristicroots theory and oscillation theory; Thirdly, regarding the delay as a parameter, conditions of theexistence of Hopf bifurcation and the peridic solution, furthermore, the form of the approximateperidic solution are obtained; Finally, Some specific examples are given and the solution diagrameappears by Matlab.

首先利用导数性质，得到了该模型正平衡态存在惟一性的充分条件；其次，利用特征值和振动性理论得到了该模型正平衡态全局渐近稳定性充分条件；然后，应用Hopf分支理论证明了该模型Hopf分支及近似分支周期解的存在性，并给出了周期解的近似表达式；最后，借助于MATLAB数学软件，举例并绘出了模型数值解的拟合图象，验证了文中定理条件的可行性。

This thesis is concerned with the existence of global attractor forreaction diffusion equation with delays.

本文研究含时滞的反应扩散方程全局吸引子存在性的问题。

The global attractor of the system is a equilibrium point when, and it is exponentially attractive.

证明了当时，该系统的平衡点是全局指数型吸引子，并将所得结果应用到系统能稳性的研究中。

She was the person who turned him from a footballer into a global attractor.

她使他从一名足球运动员成为一个在全球引人注目的人物。

The signs augur well for the global economy.

这些迹象对全球经济是个好兆头。

But these aureola issue the Chinese forum that has force most in whole world of the home on the global Chinese net of skyline, the cat attacks to appear short however one big chunk.

但在天涯的全球华人网上家园全球最具有影响力的中文论坛这些光环下，猫扑却显得矮了一大截。

Let us now push the love of soul into the greater auric field that is global in size.

现在让我们把灵魂之爱推入全球尺寸的更大金场中。

We are conscious guardians, and therefore we move from place to place as required by Earth to move the energy so that stuck places in her global auric field may begin to move again.

我们是有意识的指导者，而因此我们根据地球的需要从一处游到另一处来运转能量，以让她的全球金场中堵塞的地方能开始再次运转。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。