community antenna television mainline amplifier

例句：

1. 1. The community antenna television mainline amplifier is the key to our successful broadcasting.
   社区天线电视主线放大器是我们成功广播的关键。
2. 2. The mainline amplifier is responsible for boosting the signal strength of the cable network.
   主线放大器负责增强电缆网络的信号强度。
3. 3. The community antenna television mainline amplifier was installed in the new TV room, providing better reception forviewers.
   社区天线电视主线放大器在新电视室安装，为观众提供更好的接收效果。