应用层

The network architechure of control system consists of two layers; The hardware architechure of ethernet node is based on ARM7 core processor; The software architechure is based on uClinux embedded OS; The application layer protocal is customed and is realized by C language.

控制系统的网络架构分为两层；以太网节点的硬件基于ARM7 内核的处理器；软件基于uClinux 嵌入式操作系统；网络的应用层协议自行定义，由C 语言实现。

Feel Keepalive prepares to grow join, if chief link design is reasonable, so this mechanism is necessary, what no matter be,transmit a TCP is articulatory, still use the information of an implementation.

觉得keepalive就是为长连接准备的，如果长连接设计是合理的，那么这个机制是有必要的，无论是传输层TCP的分节，还是应用层实现的消息。

The top-down approach mentioned in the subtitle means that the book starts at the top of the protocol stack--at the application layer--and works its way down through the other layers, until it reaches bare wire.

自上而下的方法在字幕中提到的手段，这本书开始在协议栈的顶部-在应用层-和工程的方式通过了其他层，直到它达到裸线。

Some issues in the design and implementation of DIS network are discussed in the dissertation.

本文在讨论了DIS标准化的必要性和重要性的基础上，分析了DIS标准的组成内容，以及在通讯层和应用层的标准化方法。

as the process of campus network informatization speeding up continuously,an increasing number of schools built their own mail system which is available to both teachers and students. in addition to smtp session layer's anti-spam measures,surfcontrol e-mail information security gateway riskfilter is on the application layer, anti-spam engine asa integrates four anti-spam technology: digital fingerprints, heuristic analysis, semantic analysis and the internet threat database. many surfcontrol content security experts from all over the world maintain and update asa databases 365 x7x24 hours continually, and also it wouldautomatically updated four times daily, providing an accurate rate of 99.2 percent or more higher andbelow 0.1 percent rate of misjudgment of the spam filtering effect.

随着校园网信息化的进程不断的加快，越来越多的学校搭建了自己的邮件系统，提供给教师或学生使用，系统除了smtp会话层的反垃圾邮件措施，surfcontrol邮件安全信息网关riskfilter在应用层上，反垃圾邮件引擎asa集成了四种反垃圾邮件技术：数字指纹、启发式分析、语义分析和internet威胁库，由surfcontrol全球众多内容安全专家，365x7x24小时不间断维护更新asa数据库，每天自动更新4次，提供准确率高于99.2%、误判率低于0.1%的垃圾邮件过滤效果。

The first level adjustment, which happens at the transport layer of sensor nodes and cluster nodes, is used to adjust tolerable error rate and coefficient for event data rate.

本文针对两类服务的特点，设计了一种联合应用层和传输层的自适应QoS保障机制，通过两级调整，满足用户的QoS要求。

The architecture of Client/Server based on transaction middleware is a typical kind of the distributed On-line Transaction Processing, becoming a major platform of enterprise information system, which offers communication of striding platform, loading balance, fault-tolerant and resumable ability, and strengthens a new generation middleware in common with 3-layer architecture provided with the strong security, excellent management and high availability in common. Numerous distributed system, different database and different network environment are closely linked up among an enterprise, offering the function of mutual operation on application layer.

基于交易中间件的C／S结构是一种典型的分布式事务处理系统，成为构筑企业信息系统的主流平台，它提供了强大的跨平台通讯、负载平衡、容错及其故障恢复能力，并在这个基础上进一步强化了安全性、可管理性和高可用性的新一代通用型三层结构平台的中间件，把企业中众多的异构系统、异构数据库、不同网络环境紧密的联系起来，并在应用层提供了互操作性的功能。

Through the design of the two structures, caller instance and replier instance, the session and application layers of RTP are implemented by the state machine.

文中通过设计呼叫者事例和应答者事例两个主要结构体，采用状态机机制实现了实时协议的会话层和应用层。

This study not only applies comprehensively cores, logging, well logging, seismics, analysis assay data and paleontology data, but also adopts the latest theories and technique and methods of sequence stratigraphy, high-resolution stratigraphy, sedimentography, oil-gas geology, geophysics, stratigraphic paleontology and geochemistry, etc.

借鉴前人研究成果，综合利用岩心、录井、测井、地震、分析化验资料及古生物资料，应用层序地层学、高分辨率地层学、沉积学、地球物理学、古生物地层学、地球化学等多学科的新理论、新技术和新方法，发挥多学科联合攻关的优势，对松辽盆地北部西部斜坡中部含油组合进行了系统而精确的层序地层及沉积体系研究。

The cycle communication function is a basic function of master station exchanging data with slave station.

但是，ASPC2只有物理层，数据链路和应用层都没有集成，西门子又封锁了主站技术，如果采用ASPC2开发必然带来很大的麻烦。

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。