通信的

Communication system and the network construction must be suported by the designer , constructer and project manager.

通信系统和通信网络的建设离不开通信工程设计、施工和监理。

Communication;Communication systems;Communication technology;Construction;Data;Data exchange;Data processing;Data processing system;Definition;Definitions;Earth's surface;Encoding;Geodesy;Geographic information;Geographical;Geography;Geology;Geomatics;Geotechnics;Information;Information technology;Modelling;Reference materials;Reference model;Standardizations;Unified Modeling Language

中文标题地理信息。参考模型中文主题词通信；通信系统；通信技术；建筑；数据；数据交换；数据处理；数据处理系统；定义；地球表面；编码；大地测量学；地理信息；地理的；地理；地质学；地理信息学；土工学；信息；信息技术；建立模型；参考材料；参考模型；标准化；统一建模语言

ABSTRACT Microcellular communications and low Earth orbit satellite communications will be playing a key role in forming the future persona...

微蜂窝通信和低轨道卫星通信是组成未来个人通信网络的重要角色。

ABSTRACT Microcellular communications and low Earth orbit satellite communications will be playing a key role in forming the future personal communications network.

微蜂窝通信和低轨道卫星通信是组成未来个人通信网络的重要角色。

Currently there are two kinds of trunking communication systems: analog trunking system and digitaltrunking system.

当前的集群通信系统可以分为两类：模拟集群通信和数字集群通信。

DMR communication protocol is a new style international communication protocol applied to digital trunking communication systems.

摘 要：DMR通信协议是一个适用于数字集群通信系统的新型通信协议。

With respect to the exponential computation complexity of the optimal multi-user detection in CDMA systems,a sub-optimal multi-user detector based on evolution strategy for exonerating crossover operation and lowing computation complexity is proposed.

1引言CDMA通信及其关键技术是目前国内外移动通信研究的热点，但是CDMA通信系统中存在着固有的多址干扰，极大地限制了多址用户数或同样用户数条件下的通信质量。

3Rd Combat Communications Group, Tinker AFB, Okla.- provides deployable computer communications, navigation, and air traffic systems, anywhere in the world and under hostile conditions.

第3战斗通信大队，廷克空军基地，俄克拉荷马州-提供部署计算机通信，导航和空中交通系统，在世界任何地方和敌对的条件下，提供部署计算机通信，导航和空中交通系统。

Virtual instrument technology is utilized and products are focused in fault detection system for cable inflator/air pressure monitor system and, fault detection system for communication fibre and it was categorized as 2001 National Torch Plan.

公司应用虚拟仪器技术，专为电信系统研制生产的电缆充气机/气压监测系统、虚拟通信光纤故障检测系统，使得通信故障检测和故障定位更精确，管理更方便，虚拟通信光纤故障检测系统更被列入2001年国家级火炬计划。

Siemens Communications Group is one of the top three international telecom equipment venders with footprints in over 160 countries, and it takes leading position in GSM and 3G worldwide markets.

西门子通信集团是世界前列的国际通信设备提供商，足迹遍布160个国家，在全球GSM和第三代移动通信系统领域居领先地位。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。