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前几年由于种种误区，使集群移动通信的健康发展受到挫折。但随着人们认识的提高，认识到集群移动通信网在专用指挥、调度系统中起着公用网不可替代的举足轻重的作用，而重新调整集群移动通信的生存发展定位，从而使我国的集群移动通信网不断发展壮大。本文将概括介绍直放站对?
A few years ago due to all kinds of misunderstandings, the healthy development of cluster mobile communications has been setbacks. However, with the improvement of people’s understanding, it is recognized that the cluster mobile communication network plays an irreplaceable role in the private command and dispatch system and the readjustment of the survival and development of the cluster mobile communication, so that the cluster mobile communication Network continues to grow and develop. This article will provide an overview of repeater pairs?