And it is also a difficult problem that there had no standard, practical, continued development of methods and techniques during the development of the communication network management systems.

而在通信网络管理系统开发中没有一个规范、实用和持续的开发方法和技术，也一直是网络管理建设中的难点问题。

youdao

This paper addresses the dynamic location management in personal communication systems with cellular network architectures based on all-direction mobility model with stationary probability.

阐述了具有蜂窝网络结构的个人通信系统中，基于考虑静止概率全向运动模型的动态位置管理。

youdao

Friends in the door, to introduce a motor vehicle standards, including operating systems, communication systems, network management, etc.

朋友门，给大家介绍一个汽车的标准，包括操作系统，通信系统，网络管理等。

youdao