查询词典 ethernet network

ARP and RARP (Reverse Address Resolution Protocol) are specialized protocols used only with certain types of network interfaces (such as Ethernet and token ring) to convert between the addresses used by the IP layer and the addresses used by the network interface.

ARP和 RARP特定网络接口使用的特定协议用于转换 IP 层和网络接口的地址（ IP 地址和 MAC 地址）。

Traditional Ethernet, all users share the same broadcast domain and the domain of conflict will cause a decline in network performance, the emergence of switches to solve the problem of domain conflict, while broadcast storm control and network security only through the Road achieved by the device.

传统的以太网中，所有的用户共享同一个广播域和冲突域，会引起网络性能的下降，交换机的出现解决了冲突域的问题，而对广播风暴和网络安全的控制只能通过路由器来实现。

With scheduling algorithms FIFO,the communication model is set up and network elements' arrive curves and service curves are derived for a switched industrial Ethernet model with two levels' tree topology.Then,analytic expressions of the worst case end-to-end delay,buffer size and output burstiness are presented,the maximum network delays of real-time data are calculated based on derived results.

针对FIFO调度算法，对两级树型拓扑结构的交换式以太网系统建立了通信模型，推导出各网络元素的到达曲线和服务曲线，由此得到了最大时延、所需缓冲区大小、输出突发量等实时业务流的主要参数解析表达式；利用推导所得结论计算了实时业务流的最大网络时延。

The TD4114IPII Day/Night network dome from ELMO USA of Plainview, New York, has added power over Ethernet support via the camera's port network connection and third-party PoE bridges, eliminating the need for an external power source and reducing infrastructure requirements to a single cable.

美国ELMO USA 的TD4114IPII昼/夜网络球机增加了以太网供电，省去了外部电源并且降低了单路电缆的基础部件需求，它的以太网供电通过摄像机端口的网络连接和第三方PoE实现。

It has already been regarded as one of the main solutions of indoor-network.with the Ethernet or the wireless local area network supplemented, PLC can be available in transmiting high speed data, voice, image and so on multimedia service signal, so it has become a sort of broadband access technology for development favor extremely.

它已经被看作主要的室内网络解决方案之一，与以太网、无线局域网相互补充，可用于传输高速数据、话音、图像等多媒体业务信号，成为目前发展前景十分看好的宽带接入技术。

As Ethernet Passive Optical Network is one of the most effective ways for broadband access, it is important to set up a stable and effective network management system.

以太网无源光网络是宽带接入的最有效方式之一，为其建立一套稳定、有效的EPON网络管理系统显得尤为重要。

Routers used to connect different local area networks, and breakthroughs such as token ring network Ethernet LAN standard, such as topology limitations to build a large network.

路由器用于连接不同的局域网，突破诸如以太网和令牌环网等局域网标准拓扑的局限构建一个更大型的网络。

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。

Usually, enterprise employees of different sectors are not centralized when they work. They are scattered in different floors or regions. As network users, they need to be centrally managed; Many sectors demand for high network security to prevent data from being eavesdropped. They can not share one same Ethernet with other sectors.

在企业中，很多部门的员工并不是集中办公，他们分布在不同的楼层或地域，做为网络用户，他们需要集中管理；也有很多部门在网络上需要越来越高的安全性，不能和其他的部门混用同一个以太网段，以防止数据窃听。

According to the calibration information, Research and development status of automotive bus network and automotive calibration system is studied and the research significance is generalized. First of all, the collectivity precept for calibration system is designed, the calibration platform is set up based on the XCP Protocol and the calibration object is CAN bus network simulation ECUs. Then how to create the calibration system based on Ethernet and Series communication is expatiated, the communication way from computer to ECUs is introduced and the calibration system is tested. Then how to create the calibration system based on CAN bus communication is expatiated, the design and the interface programme are introduced and the calibration system is tested. At last the platform is used to calibrate the CAN bus network simulation system to regulate the simulation system's topology and communication speed to test the communication protocol's feasibility.

论文首先设计了标定系统的总体方案，以CAN总线实时仿真系统中的节点标定为研究对象，采用XCP协议建立具有串口、以太网和CAN总线三种通讯接口的标定平台；然后，具体开发了基于以太网通讯和基于串口通讯的标定系统，完成了上、下位机部分的软件设计，确定了标定系统在两种通讯方式下的数据处理方法，并分别应用两种标定方式标定下位机仿真系统的参数，让下位机仿真系统在规定的通讯协议和拓扑结构下进行仿真，对所设计的标定系统进行了调试；接着，设计了基于CAN总线通讯的标定系统，完成了CCP协议（&XCP on CAN&）的接口程序设计，并通过混合动力汽车一种拓扑结构的通讯仿真对所设计的系统进行了调试；最后，应用开发的标定系统，对混合动力电动汽车网络通讯协议进行了仿真研究，并根据实验结果进行了分析。

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。