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| hazardous in-flight weather advisory (在甚高频全向无线电信标上连续广播危险天气信息 (严重的天气预报警报) SIGMET (重要天气信息)、对流 SIGMET.中心天气通知、AIRMET (飞行员气象信息)和飞行员紧急天气报告) | |||
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| hazardous in-flight weather advisory service | |||
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恶劣天气咨询服务 : 1 phrase in 1 subject |
| Electronics | 1 |
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