distress call
短语词组
- distress telephone call 遇险电话呼叫
- distress telex call 遇险电传呼叫
- distress radio call system 遇险无线电呼叫系统;遇险无线电呼救系统
- distress priority call 优先遇险呼叫;遇险优先呼叫
- distress -call pulse 求救信号脉冲
- animal distress call 动物危难叫喊
- distress call format 遇险呼叫格式
- no distress call 未发求救信号
- distress call apparatus 遇难呼救装置 返回 distress call