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

• 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。
• Oh, I think they're announcing my flight over the public address system. I'd better be going.
  啊！我听到扩音器在广播我的班机了，我该走了。
• 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。
• Someone cranked up the volume of the public address system
  有人调大了公共广播系统的音量。
• 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。
• As the aircraft was fresh off the assembly line, I can assure you that there was no problem with the public address system, but the speakers 'accents left more than a few passengers confused as we were tossed about over the Bay of Bengal.
  由于飞机是刚刚出厂投入运营，我可以肯定，机上的公共广播系统没有任何问题，但由于发言者的口音问题，当我们在孟加拉湾上空颠簸不已的时候，若干的乘客困惑不已，不知所措。
• Mr Uriel explains that a team of eight people can control every camera, exit and public address loudspeaker and so ensure that bottlenecks do not form ( the police have their own conventional closed-circuit TV system for crowd monitoring).
  乌列解释说，一个由8人组成的团队，就能够监控每一个摄像头、出口和公共场所的扩音器，以此保证不会出现瓶颈（警方有其自己常规的闭路电视系统来监控拥挤现象）。
• In this paper, the loudspeaker array in the public address system is described.
  叙述扩声系统用的扬声器组阵。
• 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
• The captain spoke to the passengers over the public address system.
  船长通过播音装置向乘客讲话。