SOFAR channel

例句：

1. 1. The SOFAR channel is the official communication channel for the international space station.
   SOFAR频道是国际空间站的官方通信频道。
2. 2. The SOFAR channel is used to transmit signals between the space station and Earth.
   SOFAR频道用于在太空站和地球之间传输信号。
3. 3. The SOFAR channel is also used for emergency broadcasts during space missions.
   SOFAR频道还用于太空任务中的紧急广播。