下界

It was considered that karstification is the base of reservior formation, and lithology and faulting control the formation and development of internal reservior.

其发育规律为：岩溶作用是下古生界储集层发育的基础；岩性和断裂作用决定内幕储层的形成与发育。

While from fault detection aspect this method can detect abrupt and incipient faults effectively and is more robust than the methods where the thresholds are determined by statistical properties of residual errors.

第二类问题为在状态空间模型下带有未知但有界噪声的非线性离散时间系统传感器故障的检测与隔离问题。

The results show that the depths calculated by the vertical grads method are quite satis factory under various conditions.

在具有高分辨率资料的情况下，垂向梯度法是4种方法中计算东海夏季跃层上界深度的最佳方法。

Posada was up next, and with one strike, he drove a screamer to right, just foul.

小波是下一棒打击者，一好球后，他打出支吓人的一击，但可惜是界外。

For a new kind of linear chaotic operator, one class of nonwande-ring operators (invertible and bounded linear nonwandering operators) are studied, and their invariance under small perturbation in finite dimensional separable Banach Space is proved.

对于一种新型的线性混沌算子―非游荡算子，研究Banach空间上的一类特殊非游荡算子―可逆线性有界非游荡算子，证明它的小扰动下的不变性。

In the early years of the Qing Dynasty, after the policy issuance "migrate to Taiwan and Restore it"in the common social context of Abstract immigrants to cultivate wastelands, the Hakka people migrated to either the coastal southeaster Guangdong or Taiwan by crossing the Strait for reclamation of wastelands, thus becoming an integral part of the 4th migration of Hakka people.

清初"迁海复界"后，在"招徕开垦"的共同社会历史背景下，客家人或向粤东南沿海移民，或渡海赴台湾垦殖，成为客民第四次大迁徙运动的重要组成部分。

Firstly, we present some sharp upper bounds on the adjacency spectral radius of graphs, and show that these bounds are somewhat better than the known ones.

首先，我们给出一些图的邻接谱半径的一些新的可达上界，并说明这些新结果在一定情形下比已有的结果要好。

By the means of combinatorial matrix, the relation between minimum degree of connected graph and upper bound of spectral radius was carefully depicted.

利用组合矩阵方法，精细地刻画出连通图的最小度与谱半径的上界之间的关系，在一定条件下改进了以前的一个结果。

As an application, we develop the real-valued implicit Lagrangian and the corresponding smooth merit function for SCCP, and give a necessary and sufficient condition for the stationary point of the merit function to be a solution of SCCP.

在一致Ca(来源：ABC5fe9论文网www.abclunwen.com)rtesian-P性质下，证明此价值函数可为SCCP提供一个全局误差界。最后，给出了求解SCCP的一个混合牛顿算法。

Thirdly, under the condition with noαpriori smoothness, in order to obtain the optimal convergence rates, it is not practical to use theαpriori rule. And it is necessary to use the a posteriori stopping rule which not only depends on the error boundδbut also on the perturbed data y~δ.

再次，在没有先验的光滑性信息情况下，为了获得最优收敛速率，利用先验选取准则则变得不再实用，而利用不仅依赖于误差界δ而且依赖于扰动数据y~δ的后验停止准则是必要的。

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。