composite color signal

例句：

1. 1. The composite color signal is used totransmit information over long distances.
   复合彩色信号用于在长距离上传输信息。
2. 2. Thecomposite color signal was designed to improve thequality of television broadcasting.
   复合彩色信号被设计用来提高电视广播的质量。
3. 3. The compositecolor signal has become increasingly popular in recentyears due to its superior performance.
   由于其优越的性能，复合彩色信号近年来越来越受欢迎。