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。
2
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.
一架泛美的747听到下面一段英航747(呼号为速鸟206)同法兰克福地面控制对话的时候，喷饭不止。
3
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.