小的环

It is shown that the closed-loop system is globally uniformly ultimately bounded with respect to a compact set around the origin. This set can be made arbitrarily small by increasing the gradient of the saturation function.

其结果表明，闭环系统关于原点的一个紧集是整体一致最终有界的，并且该紧集可以由增加饱和函数的斜率而做得任意小。

It was proved that the proposed control scheme guarantees that all the variables in the closed-loop system are bounded and the mean-square tracking error can be made arbitrarily small by choosing some design parameters appropriately.

理论证明，所提方法保证闭环系统的所有信号一致有界，且通过选择适当的设计参数，可使跟踪误差任意的小。

In this paper, we present an O time algorithm to solve the minimum circle-cover problem defined on circular-arc graphs based on the processor arrays with a reconfig-urable bus system which consist of a processor array and a reconfigurable bus system.

在本论文中，我们提出O(1)时间的演算法，以解决环弧图上最小覆盖圆的问题。我们的演算法乃使用可重组态汇流排系统之处理器阵列，它含有一处理器阵列以及一可重组态汇流排系统。

The frequency response model of HAGC is estimated with correlative identification theory. The dynamical parameter model HAGC is estimated with LS, auxiliary variable LS, and bias-compensating LS respectively. It is proved with experiment that the methods proposed in the paper are accurate and practical.

5用相关辨识理论辨识了液压AGC压力闭环系统的频率特性，分别用普通最小二乘法、辅助变量法及偏差补偿算法辨识了该系统的动态参数模型，辨识结果验证了论文理论研究成果的正确性和可行性。

In this paper, state-space averaging method is used to establish the small signal model of current regulator.

本文用状态空间平均法建立了电流调节器的充放电小信号数学模型，并在此基础上分别设计了电流调节器的充放电控制器，其中充电控制器采用滞环＋PI调节的方式。

For general discrete bilinear system, this paper proposed a stability criteria which is sufficient for systems with linear feedback. The smallest attracting range is also obtained. Based on the criteria, a simple control law is proposed to guarantee the uniformly asymptotically stability of zero state.

对于一般离散双线性系统，本文提出了系统在线性反馈下的稳定性判据和最小吸引域，并给出了一种简单的控制方案，保证闭环系统在原点的一致渐近稳定性。

As he spoke Iktomi, the spider, took the elders willow hoop which had feathers, horse hairs, beads and offerings on it and began to spin a web.

他和蜘蜘Iktomi谈话，祂要他去收集柳木环、羽饰、马的鬃毛、小珠给祂，接著祂开始编织一个蜘蛛网状的东西。

The reason that the internal defects little occur at the center points and fissure takes an annular form during three-roll rolling was expounded based on the state of stress and strain at the center of rolled pieces.

根据轧件内部的应力应变状态，阐述了三辊轧制轧件中心点缺陷产生可能性较小和断裂呈环向裂纹的原因。

The maximum and the maximal variation of sea ice appear in Weddell Sea and Ross sea, while the minimum and the minimal variation of sea-ice appear inAntarctic Peninsula.

南极海冰最多和最少期分别出现在 9月和 2月；威德尔海和罗斯海地区海冰最多、变化最大，南极半岛地区海冰最少，变化也小；近 35年来环南极地区的海冰有明显的减少趋势。

It performances meet IEC420《AC H.V. Load Switch with Fuse》(1990 Edition)and GB3804 《3-63kv AC H.V.Load Switch》after strict test and long-time operating. Compared to the product of the kind in the foreign country,its technical parameter has reached the international level with the features of small volume and light weight. Can be used widely in 12kv distribution network to protect the equipment against working without phase.

该产品经全面型式试验和长期和试运行考核，性能达到EC420《交流高压负荷开关一熔断器组合电器》（1990版）和GB3804《3-63kv交流高压负荷开关》标准要求，与国外同类产品比较，技术参数已达到同类产品水平，具有体积小，重量轻，可用于环网柜和箱式变电站，广泛应用于12kv线路的电能分配，并有效地避免了设备的缺相运行。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。