1.
a ship radioing for help.
一条船发出无线电求救信号
2.
The ship sent a radio message asking for help.
那船发出了无线电求救信号）.
3.
The ship's radio sent out signals for help.
轮船上的无线电发出求救信号。
4.
an internationally recognized distress signal in radio code.
无线电码发出的国际公认的求救信号。
5.
The radio operator sent an appeal for help to headquarters.
无线电报务员向司令部发出求救信号.
6.
The strand party radios for help .
这个受困旅游团用无线电发出求救信号。
7.
an internationally recognized distress signal via radiotelephone (from the French m'aider).
国际公认的无线电话呼救信号。
8.
An international radiotelephone signal word used by aircraft and ships in distress.
呼救信号遇险的飞机、船只等使用的国际无线电呼救信号
9.
You can send out a call for help over the radio.
你可以通过无线电发出求援信号。
10.
emergency beacon
紧急救援无线电信标
11.
international time signals
国际无线电对时信号
12.
Admiralty List of Radio Signals
《英版无线电信号表》
13.
equal signal system
等信号无线电导航系统
14.
Interception of a radio transmission.
截听截取无线电信号
15.
emergency position indicating radiobeacon signals
紧急无线电示位标信号
16.
transmit(a signal,etc)by radio waves
用无线电波发送（信号）
17.
radio control receiver
无线电控制信号接收机
18.
Our radio picked up your SOS.
我们的无线电收到了你们的呼救讯号。