Digital trunking communicationsystem has developed as well .

数字集群通信网络建设初具规模。

Abstract : the radio trunking communications system was integrated into thecontainer management system nbctms by ningbo beilun international containerharbor company limited .

摘要：宁波北仑国际集装箱码头有限公司为配合集装箱生产管理系统（nbctms）应用了无线集群通讯系统。

At present , chinasat digital trunking communication network has realized the coverage to many cities such as shanghai , tianjin , jinan , nanjing , qingdao and weifang .

目前，中国卫通数字集群通信网已实现上海、天津、济南、南京、青岛和潍坊等城市的覆盖。

This paper discusses the theory of software radio applied in digital trunking system by studying the basic theories and the key technology of software radio and by analyzing the present development and attainable targets of software radio engineering .

文章针对软件无线电的关键技术，论述软件无线电所涉及的基础理论，分析了软件无线电技术发展现状、可达到的目标。

The compiling theory as well as cagm and engineering databases technique is integrated into three dimensional busbar trunking cad system so that it can provide intelligent , integrated and standard solution .

三维母线槽计算机设计（jdmcad）系统综合利用了编译原理、计算机辅助几何造型技术和工程数据库技术，为母线槽设计提供了智能化、集成化、标准化的解决方案。