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

• 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。
• 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。
• In my cluster, eth0 is the public IP address of my system.
  在我的集群中，eth0是我的系统的公共IP地址。
• Public Address System ( abbreviated as PAS) is a necessary equipment for public places such as intelligent building, airport, railway station and integrated building and has a wide range of applications.
  公共广播系统（PublicAddressSystem，简称PAS）是智能大厦、机场、车站、综合大楼等公共场所所必备的设备，其应用范围极为广泛。
• 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
• Someone cranked up the volume of the public address system
  有人调大了公共广播系统的音量。
• 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。
• Distributing Public Address System and the Special Delay-time Device
  分布式扩声及其专用延时器的研制
• Therefore, the main problem discussed in the essay is that how we learn digital public address system, what the need of the civil airport public address system is, and how we connect the digital public address system with practical application at the airport.
  应该怎样认识数字化公共广播，民航机场公共广播系统有些什么样的需求，怎样才能把数字化公共广播系统与机场的实际运用结合起来，这是本文主要讨论的问题。