On these ships, there are always 23 crew members, and it is an oddity never remarked upon by the traffic officer that many of the ships have the same callsign.
这些船上总是有23名船员，而且大部分有一样的呼号，奇怪的是交通员却从来都没说什么。
2
The callsign and the commercials repeat exactly, often with jingles that will help you distinguish them from one another.
呼叫信号和商业广告会重复播出，通常带着音乐，可以帮你区分。
3
So it was with some amusement that a Pan am 747 listened to the following exchange between Frankfurt ground control and a British Airways 747, callsign Speedbird 206.