... radiotelephone service 无线电话业务 radiotelephone frequency 无线电话频率 radiotelephone procedure 无线电话通信程序 ...
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radiotelephone distress frequency 无线电话遇险频率
radiotelephone distress frequency watch 无线电话遇险频率值班
Very High Frequency radiotelephone communication 甚高频无线电话通信
radiotelephone distress frequency watch receive 无线电话遇险频率值班收信机
radiotelephone distress frequency watch receiver 无线电话遇险频率值班收信机
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