public address system
复数形式
public address systems
1
公共广播系统, 扩音系统
an electronic amplification system used to broadcast sound to a large audience in public spaces
A public address system is a set of equipment used to amplify and distribute sound to a large audience. It typically includes microphones, amplifiers, speakers, and mixers, allowing speakers or performers to be heard clearly in large spaces, such as auditoriums, stadiums, or public events. The system is designed to project sound over long distances, ensuring that everyone in the audience can hear announcements, music, or speeches. Public address systems are commonly used in schools, concerts, airports, and other venues where clear communication with a large group is needed.
- The school used the public address system to announce the upcoming field trip.
学校使用扩音系统来宣布即将到来的实地考察旅行。
- The concert venue had a powerful public address system to make sure everyone could hear the performance.
音乐会场地有一个强大的扩音系统，以确保每个人都能听到表演。
- The emergency message was broadcast through the public address system during the drill.
紧急消息在演习期间通过公共广播系统进行了广播。
- The public address system in the mall helped guide customers to the new store opening.