通信网络

The station antenna is NTT DoCoMo and the equipments of the terminal air wireless coupling of the customer cellular phone.

基站天线是移动通信网络与用户手机终端空中无线联结的设备。

The spectral theory of graph is not only an important area in graph theory but also an active topic. There are extensive applications in the fields of quantum chemistry, physics, computer science, communication network and information science.

近半个世纪以来，谱图论形成发展成为图论研究的重要领域之一，也是一个非常活跃的研究方向，它在量子化、物理、计算机科学、通信网络及信息科学中均有广泛的应用。

Ad Hoc Network is a kind of self-organized communication network without center.

Ad Hoc网络是一种无中心、自组织的移动通信网络。

The integrated optical networks based on optical swapping technology will be the new development direction of communication networks in future.

以光交换技术为基础的全光网络将是未来的新型通信网络的发展方向。

The goal is by giving students a global understanding about the principles of the computer networks, and making them understand the way to design, analyse and applicate the computer networks, to form a good preparation for the later study.

目的是使学生对计算机通信网络的基本原理有一个全面、系统的认识，掌握计算机网络的设计、分析和应用方法，为信息安全专业课的学习打下良好基础。

A case ofapplication of CAN bus on the distributed automatic system ofsubstation is illustrated.To meet the need ofautomatic controlsystem ofsubstation,a network is necessity because ofthe distributed control units ofthe substation.To shortenthe developed period of the system,an interface bridge between the RS232 and CAN bus is made.The result oftest run shows thatthe requirements ofsystem can be satisfied by the project.

摘 要：对一个把CAN总线应用到分布式变电所自动化系统的例子进行了分析，对于分布式变电所自动化系统来说，通信网络的效率、安全性和实时性具有重要意义，在实际工作中，通过在现行测量、控制和保护单元外增加一个RS232和CAN总线之间的转换器，构成变电所自动化系统的现场总线网络，试运行情况表明：该方案完全能满足系统的要求。

If this PBX or the hot line is out of order, out-going calls from the remote team terminals are directed by the team function subcontrol over a net connection device of the communication network to which they are directly connected.

在小程控交换机或者热线受到干扰时，从远程用户呼出的呼叫由集群功能副控制器通过直接连接在通信网络上的网络连接设备进行传输。

Three most significant call characteristic differences between the fixed network and a mobile communications network are authentication, handovers, and dropped calls.

移动通信网络和固定网络相比较大的差别就在于鉴权、切换和掉话。

To meet the requirements of geographical decentralization, large amount of acquisition points, less data, quasi real-time mode of distribution networks, the data acquisition communication newrok was realized by the commercially available GPRS/CDMA wireless public network and was connected with the wirelss network operators with Access Point Name.

针对配电网地理位置分散、采集点多、数据量少、准实时性要求的特点，数据采集通信网络采用成熟的GPRS/CDMA无线公网实现，以APN专线方式与无线网络运营商连接。

The company has a set of wireless broadband communications network, computer network project planning, implementation as one of high-quality, professional engineering and technical team.

公司拥有一支集无线宽带通信网络、计算机网络工程规划、实施为一体的高素质、职业化的工程和技术团队。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。