以太网

Secondly, the thesis weightily analyzes iSCSI protocol, which is used to achieve IP-SAN, including its working principle, working way and application. It also points the advantages of iSCSI by comparing iSCSI with FCIP and iFCP that are other protocol of IP-SAN.

接着，重点阐述了实现IP-SAN的iSCSI协议，包括其工作原理、实现方法和应用，同时介绍了IP-SAN的其它两种协议FCIP和IFCP(Internet Fibre Channel Protocol)，通过对三种协议进行比较，指出基于以太网的iSCSI技术的优势。

In the course of special switch-? design, the main research includes: administrable fast Ethernet switch-; hardware design, referring to SNMP, self-define the Community Network Management Protocol, the switching chips driver and application program interface realization, management software agent design, Systematic test.

楼道交换机开发过程中涉及的主要工作包括：可管理的快速以太网交换机的硬件设计；参考SNMP自定义本交换机的社区网络管理协议；交换机芯片驱动及应用程序接口的实现；交换机管理软件的AGENT部分的编制；系统调试／测试。

NO1 Mine: Movable Phone System, EOS , the ground base station , function of query, setting function, attempter center, Ethernet network exchange machine, related personal, telephone, digital SPC switch

矿级层：小灵通，基站线路复用器，地面基站，查询功能，设置功能，调度中心，以太网交换器，相关人员，电话，数字程控交换机

NO1 Mine: Movable Phone System, EOS, the ground base station, function of query, setting function, attempter center, Ethernet network exchange machine, related personal, telephone, digital SPC switch

一矿： 矿级层：小灵通，基站线路复用器，地面基站，查询功能，设置功能，调度中心，以太网交换器，相关人员，电话，数字程控交换机

CEBus employs a CSMA/CD contention protocol similar to that used in Ethernet LANs.

CEBus 采用 CSMA/CD 竞争协议，类似于以太网局域网。

Second, a house network which based on CEBus in the low power line correspondence is built with the drive module made by interface chip of SSC P300 based on the spread spectrum technique. House network is connected to the district Ethernet to communicate with the district manage center by the embedded relay module.

其次，在研究CEBus的基础上，选用符合此协议的电力线载波芯片SSC P300作为通信接口芯片设计出驱动模块并组成家庭内部网络；家庭内部网络通过嵌入式中继模块和小区以太网实现与小区管理中心的通信。

Hardware platform is LPC2214 ARM7 Depa...

硬件平台是LPC2214 ARM7处理器+8019AS以太网控制器。

AFDX is applied in aviation and spaceflight field more abroad with its unique advantage, but because of its communication model, It can't satisfy the requirement of divinable and low latency of the real-time mission, The research of real-time of AFDX has became a important task, To improve the real-time of the network, the most doable method is to adopt the priority management model. This paper analyzes the issue of packet transmission with different priority; gives the average queue time and stay time of packets with different priority under two queue models and gives the computer simulation.

航空电子全双工交换式以太网以其独有的优势在航空航天等领域的应用不断扩展，但是由于通信模式，无法满足实时任务的可预测性和低延迟等要求，因此，研究AFDX的实时性成为一个重要的课题，为了提高网络的实时性最可行的措施就是采取优先级管理模式，对具有优先级的分组传输问题进行了分析，给出了两种优先级排队模型下，不同优先级分组的平均排队等待时间和平均逗留时间，并进行了计算机仿真。

Based on the theory and function of electrooptic fire control system, the overall structure design of the Ethernet-based electrooptical fire control system simulation verifying and testing platform is proposed in this paper.

本文根据光电火控系统的原理和功能，提出了基于以太网的光电火控系统仿真、验证与测试平台的，总体结构设计。

Carrier s ense multiple access collision detect describes the Ethernet access method.

载波侦听多路访问冲突检测机制描述了以太网的访问方式。

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。