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Public welfare forests in building forest ecosystem are possessed of nonexclusive characteristic of public goods, which leads to economic externality. It is an important factor of market failures and causes law-efficient allocation of ecological resources for a long time.

森林生态体系建设中的公益林，具有公共物品非排他性和非排斥性的特征，由此带来的外在性是市场失灵的一个重要因素，它将导致生态资源配置的长期低效。

The sufficient conditions to guarantee robust exponential stability for the closed-loop systems are obtained based on Linear Matrix Inequality, moreover, the approach of design of robust H# output feedback controller is introduced.3 The problem of reliable H# control for a class of Lur"e systems with polytopic uncertainties is studied when all control components are operational as well as when some control components experience failures, the design approach of reliable H# controller is also obtained.4 Considering a class of uncertain Lur"e singular system with time-delays, the problem of robust stability is investigated based on Barbalats Lemma and nonsingular linear transformation of model reduction.

针对一类不确定Lur'e奇异时滞系统，基于Barbalat引理以及非奇异降阶变换，讨论了Lur'e奇异时滞系统的鲁棒稳定问题，提出了鲁棒H_∞状态浙江大学博士学位论文反馈控制器的设计方法。5、针对一类具有饱和执行器的不确定Lur'e奇异系统，提出了时滞依赖的鲁棒稳定与鲁棒二次镇定的充分条件，所的结果不需要参数的整定。6、针对任意协方差有界的有色噪声，讨论了一类不确定Lur'e奇异系统的鲁棒凡滤波问题，得出了鲁棒几滤波器设计的充分条件。7、针对一类不确定Lur'e时滞系统，通过线性变换，把它转换成奇异系统，根据奇异系统鲁棒控制理论所得出的鲁棒稳定与鲁棒镇定控制器设计的充分条件具有很小的保守性。

Wilmut said there were so many failures because it was difficult to ensure that the empty oocyst and the donor cell were at the same stage of the cell division cycle.

威尔马特说之所以有这么多的试验失败，是因为很难保证空卵囊和供体细胞能处在细胞分裂周期的同一阶段。

Here's the rest of the output of the unit test, listing the details of all the failures.

这 下面是单元测试结果的剩余部分，列出了所有的失败，的详细信息。

At the soft-hard interface, pile may overbear the ultimate moment which leads to bending and shearing failures.

所得结果对今后桩基的抗震设计具有一定的指导意义。

If I become overconfident I will recall my failures.

如果我变的过分自信，我将记起我的失败

Loca l and plant-wide power and utility failures must be considered as possible causes of overpressure or vacuum.

当地或工厂的动力和共用系统故障必须作为过压或真空的可能原因进行考虑。

The failures of GRC come to overregulation and externalities.

政府规制的缺陷进一步表现为：过度规制、外部性。

It's easy to remember his many accomplishments which far overshadow his flaws and failures.

我们很容易想起他的很多成就，这些远远盖过了他的缺陷和失败。

Such failures can lead to contamination of food, as a result of flaking Suitable finishes on walls can also be obtained by using cladding or paneling, provided that they are properly sealed.

这样失败可能导致食物的污秽，由于剥落的适当的结束在墙壁上能通过使用金属或铣板也获得，在他们适当地被密封条件下。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。