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We show that a supercritical Hopf bifurcation will occur under some conditions by using the density dependent rate in immature prey population as bifurcation parameter. Sufficient conditions which guarantee the uniform persistence and global stability of boundary equilibrium are also obtained.

我们以幼年食饵个体之间的密度制约率作为分支变量得到在一定条件下将出现超临界Hopf分支，并得到了系统一致持续生存和边界平衡点全局渐近稳定的充分条件。

The controller can guarantee that position vector and velocity vector of interconnected robot systems track a given trajectory asymptotically.

这个控制器能够保证被控互联机器人系统的位置向量与速度向量渐近地跟踪已知的轨迹。

In recent years, the social postposition effect that enrols as college enlarge is highlighted, college graduate increases substantially, obtain employment difficult question already became social heat, obtain employment leads a problem to enter a college from socioeconomy domain, become a society gradually the focus of extensive controversy.

近年来，随着高校扩招的社会后置效应凸显，高校毕业生大幅度增加，就业难问题已成社会热点，就业率问题从社会经济领域进入高校，并渐成社会广泛争议的焦点。

But the pragmatical mend did not narrow the gap on the traditional political pattern of Chinacaused by the influence of the West.

因西力东渐在中国传统政治形态上打开的一个缺口，并没有因实用化的修补而愈合。

In recent years , though, a growing trend is to put preschooler s in a day care center so Mom can work.

但是近几年来，把孩子放在幼儿园好让妈妈去工作的趋势渐长。

This paper studied the iterative approximation problem of fixed points for asymptotically quasi-nonexpansive type mappings with mixed errors in uniformly convex Banach space.

研究了一致凸Banach空间中渐近拟非扩张型映象不动点具混合误差的迭代逼近问题，改进和推广了相关文献的结果。

In the interest of seeking the essential principle and technique about how to enhancethe muzzle velocity of projectile, preparation technics and fundamental characterstics ofprogrammed splitting stick propellants and polyether polyurethane close-grainedpropellants, this two kinds of high progressivity burning and high charging densitypropellants, were researched in this paper.

为了寻求提高弹丸初速的基本原理和方法，本文对按序分裂杆状和小颗粒固结药柱两种高渐增性／高密度发射药的制备工艺和基本性能进行了研究。

E., when the bourrelet keeps in contact with, or not in contact with, or impacts with the bore. The patterns of motion of a projectile traveling in an ideal tncreasing twist rifled bore are studied and compared with that of a projectile traveling...

求解了非对称弹丸在渐速膛线理想身管内的运动规律，并将该运动与等齐膛线身管内的弹丸运动进行了对比，由此得出若干结论。

It aroused all his tender feelings of protectiveness , and he said, She did not say much

鸿渐见过一次她这种神情，所有温柔的保护心全给她引起来了，说：她没有多说。

Hung-chien had seen this expression on her face once before.It aroused all his tender feelings of protectiveness, and he said, She didn't say much

鸿渐见过一次她这种神情，所有温柔的保护心全给她引起来了，说：她没有多说。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐