radiotelephone distress frequency
短語詞組
- radiotelephone distress frequency watch 無線電話遇險頻率值班
- radiotelephone distress frequency watch receiver 無線電話遇險頻率值班收信機(jī)
- radiotelephone distress frequency watch receive 無線電話遇險頻率值班收信機(jī) 返回 radiotelephone distress frequency