signal speed

例句：

1. 1. The new satellite has a signal speed of 20,000 kilometers per second.
   新卫星的信号速度为每秒20,000公里。
2. 2.The radar system can detect signals from faraway spacecraft at a signal speed of 10,000 kilometers per second.
   雷达系统可以在每秒10,000公里的速度下探测到遥远太空船的信号。
3. 3. The researchers used the latest technology to improve the signal speed oftheir communication system.
   研究人员利用最新技术提高了他们通信系统的传输速度。