television synchronizing pulse

例句：

1. 1.The television was set to the correct channel.
   电视被调到了正确的频道。
2. 2. The television synchronizing pulse was very weak.
   电视同步脉冲非常弱。
3. 3. The technicians were able to sync the television with the sound system.
   技术人员能够将电视与音响系统同步。