下界

The lower bound of the performance in tracking is derived in terms of the characteristics of the plant and the quantizer.

根据被控对象和量化器的特征，得到该系统可能达到的最优跟踪性能的下界。

The Cramer-Rao lower bound theory is a very important part of the theory of signal detection and is of great value to parameters estimation.

Cramer-Rao下界是信号检测理论中的重要部分，它对参数估计有相当大的价值。

A modification strategy for parameter estimation is proposed to guarantee the uniform controllability of the estimated model and to obtain a lower bound of the controllable measure.

该算法构造了一个估计参数的修正策略，保证估计模型的一致能控性，并且得到能控度的一个下界。

On the other hand, we obtain a partial estimate principle, by which we can estimate the lower bound of packing measure for the self-similar sets satisfying strong separation condition.

除此之外，受到文献[46]的启发，利用自相似技巧，本文还得到一个部分估计方法，用于估计满足强分离条件自相似集的填充测度的下界。

We obtain new lower bounds for the sum of degrees of simple and distinctirreducible factors of the polynomial f1 +···+ fn, where fi(1≤i≤n) are pairwise relatively prime polynomials of several variables with coefficients in C.

七我们对形如f1 +···+ fn的多项式的单重不可约因子的次数和及不同不可约因子的次数和的下界分别作出新的估计，其中fi(1≤i≤n)为系数在C中的两两互素的不可约多项式。

The wind of the manito blowed again and the several large or small lands floating in the sea appeared.

大神再动荡一下，于是，下界的情形展现了：一块块大小不一的陆地飘荡在海洋之间。

The manito breathed again and several large or small continents floating in the sea .

大神再动荡一下，于是，下界的情形展现了：一块块大小不一的陆地飘荡在海洋之间。

In my opinion most has the reason to sob is his -- Baker Chinese mho, perhaps, the small shell could not again have the world of mortals World Cup, but has not regretted, he spelled for England did one's best, but he was not the god, he was only a person, but he might save English, two times cannot actually forever.

在我看来最有理由哭泣的是他——贝克汉姆，也许，小贝不会再有下界世界杯了，但无憾了，他为了英格兰拼尽了全力，但他不是神，他只是一个人，他可以挽救英格兰一次、两次但却不能永远。

This paper discussed a strongly coupled prey-predator model under the homogeneous Neumann boundary condition.

讨论了一个强耦合的Holling-Tanner型捕食模型，利用Harnack不等式和最大值原理给出了它正解的上、下界估计。

X .. Open interval with lower bound x

x 。。||开放的间隔区间，下界是 x

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。