危险天气警报
Before the deployment of weather satellites , many areas had no advance warning of impending severe storms.
在气象卫星运作之前, 很多地区对即将到来的风暴进行预警.
Severe weather warning information issued by the technology of RDS, and added up to the dominant frequency to launch.
利用RDS技术发布气象预警信息,与主频广播信号叠加后发射。
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