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.

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。

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Some of their radars are not even in Russia, due to the breakup of the Soviet Union, and the satellites in their warning network are starting to fail.

CENTERFORSECURITYPOLICY: Center For Security Policy

He has developed a community-based Early Warning Network System and regional data-sharing along with simple technologies to measure water levels and land contours to accurately forecast flash floods and the possible heights to which the water may reach.

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It emerged Dave had kept all his emails to the bosses at Network Rail warning that staff shortages meant safety was being compromised and that a disaster was just waiting to happen.

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