zero signal

例句：

1. 1.The zero signal was lost due to a technical glitch.
   由于技术故障，零信号丢失了。
2. 2.The zero signal is used to indicate that there is no data available.
   零信号用于表示没有可用数据。
3. 3.The engineers were able to fix the zero signal problem quickly.
   工程师们能够迅速解决零信号问题。