public address system

英 [ˌpʌblɪk əˈdres sɪstəm]

美 [ˌpʌblɪk əˈdres sɪstəm]

n.  扩音系统

计算机

牛津词典

noun

• 扩音系统
  an electronic system that uses microphones and loudspeakers to make music, voices, etc. louder so that they can be heard by everyone in a particular place or building

柯林斯词典

• N-COUNT 扩音系统（缩略形式为PA）
  Apublic address systemis a set of electrical equipment which allows someone's voice, or music, to be heard throughout a large building or area. The abbreviationPAis also used.
  1. The news was announced on the public address system at the high school.
     消息是在这所中学的广播里宣布的。

英英释义

noun

• an electronic amplification system used as a communication system in public areas
  Synonym:P.A. systemPA systemP.A.PA

双语例句

• All of the equipment will debut groundbreaking features such as a public address system used to provide instructions to persons inside the building in case of an emergency.
  所有设备都会有几个开创性的新特点，比如有上面有公共地址系统，一旦发生紧急情况，可以给大楼里的人们提供指示。
• They tried to adapt the public address system into a radio transmitter.
  他们想法把广播设备改装成无线电发报机。
• Analysis of Digital Public Address System Application in the Civil Airport
  试论数字化广播系统在民航机场的应用
• Features of Networking Public Address System and Its Application
  网络化公共广播系统的特点及其工程应用
• The news was announced on the public address system at the high school.
  消息是在这所中学的广播里宣布的。
• You can use any of the public IP address configured for the IBM SONAS system to mount the NFS export.
  可以使用为IBMSONAS系统配置的任何公共IP地址挂载NFS导出。
• Around the world, flight attendants routinely use the plane's public address system to thank passengers moments after a jetliner lands, welcoming them to the destination point.
  在全球范围内，飞机降落后，航班乘务员通常会利用飞机的公共广播系统向乘客表达感谢，欢迎他们到达目的地。
• The public address system in the hospital was used for paging.
  医院里的扩音系统用来呼叫人名。
• But as I picked up the wireless microphone and began my speech, I realized in horror that my public address system was silent.
  但正当我拿起无线话筒开始发言时，我惊恐地意识到我的扩音器不起作用了。
• The only unexpected turn occurred when the familiar "Attention Wal-Mart shoppers" announcement over the public address system broke into the ceremony.
  唯一出乎意料的是在结婚典礼上突然响起公共播在台播放的”沃尔玛顾客们注意了“这句令人熟悉广播语。