多分支的

Some useful notations and definitions are give in this chapter.In Chapter 2,a class of discrete-time model of two-cell cellular neural networks with symmetric temptate are investigated. We obtain some results about the stability,asymptotic stability,the existence and attractability of 2-periodic solutions.

第三章讨论了反馈矩阵为非对称矩阵的二元离散细胞神经网络模型的稳定性与渐近稳定性、周期解的存在吸引性，除了得到系统稳定和存在2-周期解的相关结果外，还得到了系统在原点出现类似于Hopf分支的局部分支以及多个吸引4k-周期解的共同存在性。

According to mechanism of ECBM/CO2 sequestration, a mathematical model was developed. In the mathematical model, two-phase flow, multiple gas components and mixed gas sorption, impact of coal matrix shrinkage and swelling on permeability, pressure loss in wellbore were studied.

给出了多分支井模拟CO2注入开采数学模型，模型考虑了气水两相流动、多组分气体吸附、煤基质膨胀和收缩对渗透率的影响以及分支水平井井筒压降；根据数学模型得到了相应的数值模型和计算程序，进行了模拟计算对比。

Of course, the JMP only gets executed if the condition is satisfied.

识别多分支条件代码块的基本方法与上一节中识别双分支条件代码的方法是基本一致的。

Pinnate horizontal multilateral wells have great potential in the exploitation of coalbed methane, the result of which lies in well pattern optimization.

羽状多分支井在煤层气开采中具有巨大的潜力，其井型的优化布置是多分支井成功开发煤层气的关键。

After half a century of development, and in 2006 the Group turnover of over 5 billion U.S.

经过半个多世纪的发展，2006年集团营业额超过50亿美元，并在全球30多个国家和地区设立了140多个相关分支与研究机构。

Recent results indicate that （1） Oryzeae is monophyletic and falls into two main clades corresponding to the traditionally recognized subtribes;（2） Close affinities of the monoecious genera are not supported, suggesting the multiple origins of unisexual florets;（3） Previous recognition of three monotypic genera （Hydrochloa, Porteresia and Prosphytochloa） is not justified;（4） Based on dating using molecular clock approach, it is estimated that Oryza and Leersia branched off from the remaining genera of Oryzeae -20 million years ago, and separated from each other -14 MYA.

目前已有的研究结果表明：稻族是单系类群，可分为两个主要分支，相当于传统的两个亚族（Zizaniinae和Oryzinae），但稻族单性花小穗是多次起源的，不宜作为划分亚族的依据；一些单型属（Hydrochloa、Porteresia和Prosphytochloa）的建立得不到分子证据的支持；根据分子钟原理估计稻族两个主要分支的分歧时间在大约2000万年前，而稻属和近缘属假稻属Leersia的分歧时间为1400万年：稻属内主要类群的分歧时间在900万年前左右。

For a higher yield, the multibranch well bore should be perpendicular to the direction of maximum principal permeability, b. for a given coalbed methane reservoir, there is an optimal interspace, by which a bigger control area and the interaction among the branches can be obtained, and c. with the extension of the branch, gas yield becomes obviously higher, while the branch length should be an appropriate value on account of the influence of coal bed boundary and wellbore pressure drop. The research results have guiding significance for well pattern optimization and efficient development of coalbed methane gas.

结果发现：为了获得较高的产能，多分支井的井筒应垂直于最大主渗透率方向；对于给定的煤层气藏，存在一个最优的分支间距，既能保证较大的控制面积，又能保证分支间的互相影响；随着分支长度的增高，产气量也显著增大，但是考虑到煤层边界和井筒压降的影响，分支长度也应该有一个比较合理的值。

A series of electric field analogue experiments has been conducted by focusing on symmetrical multi-lateral wells and dual-lateral wells of arbitrary angles between laterals.

针对对称式多分支井和任意夹角的双分支井进行了一系列电模拟实验。

The features of these engineering are big-diameter pipes, big flow rate, long distance, lots of brunches, and full of ups and downs.

这类工程都有着超大管径，超大流量大，间隔远，分支多，多起伏的特点。

In order to solve the above problems, a scalable multicast routing protocol with QoS constraints is proposed in this dissertation at first. It could absolutely make distributed computering into realization and then solve the problems successfully by the integration with local search and global search、single-branch search and multi-branch search.

本文从研究现有多播通信模型以及QoS约束的多播路由协议和算法出发，首先提出了可扩展的QoS多播路由协议MRPQoS(Multicast Routing Protocol with QoS constraints)，它将局部搜索与全局搜索、多分支搜索与单分支搜索有机的结合在一起，有效解决了同类协议消息复杂度高、寻路成功率低以及连接建立时间比较长等问题。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失