The radio stations communicated the storm warning to the islanders. 无线电台把风暴警报传送给岛上的居民。
World-wide radio navigation warning system 世界无线电航行警告系统
Seoul's defense ministry said South Korean navy ships were now under obligation to communicate with North Korean boats by radio concerning border violations before firing warning shots. 汉城国防部称,涉及边界侵扰,南韩军舰在对其进行炮火警告前有义务先使用电台联络北韩船只。
The radio gave a warning of bad weather. 广播电台发出了坏天气的警报。
Design of radio warning system for avoiding losing 无线电防遗失报警系统设计
To back a car safely, set up a radio and video back-sight visual system that has little visual blind area, and use the vidicon focusing principle to achieve the function of warning the distance of the car that is getting too close behind. 为使倒车安全,设置视觉盲区小的射频、视频汽车倒车的后视系统。且利用摄像机聚焦原理实现简单的后车距太近的告警功能。