conference telephone control board

例句：

1. 1. The conference room is equipped with a large conference telephone control board.
   会议室配备了一个大型的会议电话控制板。
2. 2. The engineers used the conference telephone control board to troubleshoot the issue.
   工程师们使用会议电话控制板来解决问题。
3. 3. The conference telephone control board was designed to improve communication during meetings.
   会议电话控制板的设计旨在提高会议期间的沟通效率。