查询词典 format object

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 format of the schedule attribute of the following object is unrecognizable.

下列对象的计划属性的格式不可识别。

MASM uses a variation of COFF which is used under Unix as its own object and executable file format.

MASM 的格式是 COFF的一个变种，它被用在 UNIX 作为它自己的目标文件和可执行文件格式。

In all cases, the extra features are used by suffixing a colon to the symbol name followed by object-format specific text.

在所有情况下，要使用这些额外特性，必须在符号名后面加一个冒号，然后跟上目标文件格式相关的一些文字。

The '.desc' directive is not available when as is configured for COFF output; it is only for a.out or b.out object format.

当as被配置成COFF输出时，'。desc'命令无效；它只适用于a.out或b.out目标格式。

Using three moment invariants describing 3-D object reduces data greatly in the model database, this provides a potential solution to 3-D object recognition in arbitrary view.

用三维不变矩来表示三维物体可以极大地减少模型库中的数据量，为从根本上解决任意角度三维目标识别问题提供了潜在的希望。

When a user selects an object, a vertical line extends from the center of the object to the grid.

当用户选择一个对象后，从对象的中心有一条垂直线扩展到网格。

Vector is the new high school textbooks and the new one of the important contents, it is rich in physical background, it is the object of study algebra, and geometry is the object of study is set,"the number of Form" in a mathematical concept of an abstract algebra, linear algebra and functional analysis of the basic mathematical model.

向量是高中新教材中新增加的重要内容之一，它有着丰富的物理背景，它既是代数研究的对象，又是几何研究的对象，是集"数、形"于一身的数学概念，是抽象代数、线性代数、泛函分析中的基本数学模型。

Abstractor: This topic is "The Income-Sell-Stock System Of Garment Enterprise——Main office management subsystem", take the clothing enterprises in headquarters as the design object, for the headquarters system in each kind of documentary evidence establishment unified database, utilizes the small ERP system which the object-oriented thought develops.

经济的全球化，给服装企业带来无限商机，同时也给服装企业的生产制造带来越来越大的压力。许多企业通过采用新技术，引进服装CAD技术来改变生产工艺，提高产品质量；通过采用电子商务系统，进行网上营销，获得市场信息。在激烈的市场竞争环境中，单靠这些是不够的，不能为一个服装企业在管理上提供更多的帮助，而企业的管理，资源合理的计划和控制才是企业能够长期发展的有效保证，为此服装ERP系统应运而生。

If air resistance is neglected, and the speed of the object is measured over several short, consecutive intervals as it falls, the differences in the speed of the object can be used to determine the acceleration due to gravity.

如果忽略空气阻力，并在几个短暂、连续的时间间隔上测量物体的速度，就可以用物体速度的微分来计算重力加速度。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。