查询词典 three-body problem

The crux is divided into the problem of three aspects professional technical term, proper noun;Problem and the special performance in the Chinese language of Chinese language type vocabulary.

难点分为三方面专业术语、固有名词的问题；汉语式词汇的问题以及汉语中的独特表现。

In this paper, the reciprocal theorem is applied to research on into the bending problem of set squrare with three clamped edges under a concentrated bending moment acting at any of its points, and the accurate solution of this problem is given.

应用功的互等定理研究了在一集中弯矩作用下三边固定三角形板的弯曲问题，给出了该问题的精确解。

In this paper, the reciprocal theorem is applied tO researchon the bending problem of set square with three clamped edges undera concentrated load acting at any of its POints, the accuracy solutionof this problem is given.

应用功的互等定理研究了在一集中载荷作用下三边固定三角形板的弯曲问题，给出了该问题的精确解。

Peasant is the critical problem of"Three Rural Issues"which connected with Peasants Agriculture and the countryside, and the key of peasant problem is to increase the income of farmer, which is an important symbol to integrated reflect the rural economic development achievement, and a main mark to scale farmer's living level.

农民问题是"三农"问题的核心，而农民问题的关键是提高农民收入，农民收入是综合反映农村经济发展成果的重要指标，是衡量农民生活水平的主要标志。

The geological problem in the new town of Wushan County is a current focus of attention and contention in scientific circle, and is also a generally concerned problem in the Three-Gorges Reservoir region.

巫山县新城址的地质问题是当前学术界关注和争议的焦点，也是库区具有普遍性的问题。

It solved production teledata transmission meets technical difficult problem and security problem. First had carried on the investigation and study and the classification to the oil field production teledata. Divided into three kinds the oil field production teledata.

首先对油田移动生产数据进行了调研和分类，把油田移动生产数据分为三类：1、油田内部地处偏僻的边远地区作业生产数据。2、油田施工队伍在国内其它探区作业生产数据。3、油田施工队伍在国外作业区生产数据。

We reduce the three valued logic model checking problem for modal transition system to the two valued model checking problem under Kripke structure.

提出了把模态转移系统转换成Kripke结构的算法以及三值逻辑公式转换成2个二值逻辑的算法，经过转换后可用现有的模型检验技术进行模型检验。

Primarily, the thesis assays the condition of network framework, the network was divided into three levels in terms of network management in order to establish the distributed method ,and still pointing out the intention and denotation of studying the Topology Discovery.Next, the thesis analyzes SNMP protocol minutely, including its development, principle, and the Network Management system that established on the SNMP protocol. Have analysed MIB in detail and the application way of MIB in network management .The thesis also assays the ICMP protocol, describing its working principle and the format of datagram minutely , and describing two important tools of ICMP- Ping and TraceRoute in detail. On the base of upper analysis, the thesis expounds a kind of distributed Topology Discovery project, and book it in one autonomy system. Topology Discovery was divided into two levels in terms of network management, and analyses the way of linking up between the two level. The thesis minutely assays Router-Level Topology Discovery technology basing on SNMP and Subnet-Level Topology Discovery technology basing on ARP and ICMP. According to these analyses, the thesis explores the specific methodology and the technology of XML data object which using the WinSNMP API to achieve topology discovering system on the development platform of Visual C++, and also analyses the technology of topology analysis and topology graph minutely. Moreover, the thesis assays the technology of basic firewall and Topology Discovery response strategy. Finally, the thesis analyses the underlying blind problem of the topology finding, and also analyses the reason that the blind problem produced and the way that reduced. The distributed algorithm that this paper puts forward has a certain directive significance in wireless network or other fields.

本文首先分析了网络结构状况，将网络从网络管理的角度划分为三个层次，为分布式的方法奠定了基础，同时还指出拓扑发现研究的目的及意义；接着本文分析了SNMP协议，详细分析了SNMP协议的发展状况，协议的工作原理，以及由SNMP协议基础上建立的SNMP网络管理体系，详细分析了MIB，以及MIB在网络管理上的应用方式；本文又分析了ICMP协议，详细描述了ICMP的工作原理和数据报格式，并详细描述了ICMP的两个重要工具-Ping 和TraceRoute；然后本文在结合上述分析的基础上，提出了一种分布式的拓扑发现方案，将拓扑发现拟订在一个自治系统内，将拓扑发现从网络管理角度划分为路由器级和子网级两个层次，分析了两个层次之间的衔接方式，同时从拓扑地域的角度将拓扑发现过程分布化，分析了分布式算法的具体方法和分布式结点之间的数据通讯方法，本文详细分析了基于SNMP的路由器级拓扑发现技术和基于ARP和ICMP的子网级拓扑发现技术；根据这些分析，本文利用XML数据对象作为分布式算法中的数据对象，分析了XML的技术，本文使用Visual C++开发平台实现网络拓扑发现系统，详细分析了使用WinSNMP API实现基于SNMP的路由器级拓扑发现和基于ARP的子网级拓扑发现，分析了使用Winsock编程实现基于ICMP的子网级拓扑发现，本文还对拓扑分析和拓扑图的绘制技术作了较细致的分析；本文最后还分析了基本防火墙技术，分析了几种类型的防火墙对拓扑发现带来的影响，以及在拓扑发现时的应对策略，本文还分析了拓扑发现中可能产生的盲点问题，分析了盲点产生的原因以及拓扑发现中减少盲点的方法。

The main contents are as follows.1 For the state control problem in closed quantum systems, according to the distance between states, the error between states and the average value of an imaginary mechanical quantity, three Lyapunov functions are chosen, respectively. The corresponding control law designs and the convergence analyses are studied. Especially, for the Lyapunov function based on the distance between states, a class of control laws that can solve the problem that an initial state is orthogonal to a goal state is designed. The convergence of the system is analyzed via LaSalle\'s principle and one method to find the largest invariant set of the closed loop system is proposed by linearizing the unitary evolution operator at the corresponding instants.

在这一背景下，本论文在指出研究量子系统控制的必要性、回顾量子系统控制理论和方法的研究现状的基础上，从控制理论的角度研究Lyapunov理论和最优控制理论对于封闭量子系统的应用以及开放系统中的若干问题，主要内容包含以下几个方面。1针对封闭量子系统中的状态控制问题，根据状态间的距离、状态间的偏差、一个虚拟力学量的均值，分别选择三种Lyapunov函数进行相应的控制律设计和收敛性分析。

Development of the west female doctrine has experienced three theory stages: The main target of first stages is pursuing equal political right with male. The tone of second stage is remove the difference of amphiprotic. At the third stage, attach importance to the examination to female authority and development, and exceed the difference of men and women. Especially, take more attention to extremely important problem and the solution of female problem.

西方女性主义的发展经历了三个理论阶段：第一阶段主要与社会自由解放的革命运动一起，以追求与男性平等的政治权利为主要目标；第二阶段其基调是要消除两性差别：第三阶段注重对作为人的女性权力和发展的普遍性的考察，超越男女性属差别，注重关于女性更加重大的紧要问题和解决方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。