防空警报

利用无线自组织网的相关技术对传统防空警报网络进行组网，可以克服传统警报网络覆盖性差、抗毁能力差等缺点。

With related technology of wireless ad hoc network to organize the traditional air defense warning network , such shortcomings as the poor network coverage and the poor survivability can be overcome .

国家用于人民防空通信的专用频率和防空警报音响信号，任何组织或者个人不得占用、混同。

No organizations or individuals may use the same frequency or the same acoustic signals as those specially used by the State for civil air defense communications or air defense warning .

人民防空警报控制系统设计与实现

The Design and Implementation of Air - Raid Siren Control System

本文探讨了人民防空警报控制系统的设计与实现方案。

Design of City Fire Alarm System Based on Wireless Network ;

防空警报有线控制及远程状态监测系统

Air-raid Siren Wired Control and Remote Condition Monitoring System

尖厉的防空警报声响彻天空，敌人又来空袭了！

The sharp and strict air defence warning sound resounds through in the sky ;

防空警报控制系统是人防工程的主要功能环节。

Air defense alarm control system is part of the main functions of civil air defense projects .

本文对现有的防空警报遥控系统进行了研究和评估，发现了系统存在的一些问题。

In this paper , the existing Air defense alarm remote control system is been studied , and we found some problems in this system .

今天，中国星期一下午当地时间2点28分，当防空警报、汽车、火车和轮船的喇叭汽笛齐声鸣叫呜咽时，三分钟静默开始。

Today , a three minute silence began at2:28pm local time in China , as air raid sirens and horns of cars , trains and ships wailed in grief .

由于电磁环境的日益恶劣，人民防空对警报通信系统的性能要求越来越高，需要对现有的警报通信系统进行升级。

Because the electromagnetic environment is deteriorating , the people ' demand of the civil air de-fense alarm is increasing so existing alarm communication system need upgrade .

建立人民防空通信和警报系统；

Setting up a civil air defense communications and warning system ;