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

• If the public address system is operated below but too close to the instability condition the frequency shifter can reduce effectively the interference of the regenerative reverberation.
  若语言扩声系统临近不稳定状态工作，频移器可以有效地减少再生混响干扰。
• The captain spoke to the passengers over the public address system.
  船长通过播音装置向乘客讲话。
• 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
• Private health care institutions are useful complement to public medical and health institutions, and training and development of private medical and health institutions will address the problems of current health care system in our country.
  民办医疗卫生机构是公立医疗卫生机构的有益补充，培育和发展民办医疗卫生机构将解决目前我国基层卫生服务体系存在的问题。
• 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。
• For the public address system in free field, which has multiple loudspeakers, it also has the same effect.
  对于具有分布式扬声器的窒外扩声系统，也有类似的效应。
• 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。
• 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。
• 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。
• Based upon the project of Nanning International Conference& Exhibition Center, this article introduces the structure and the design and debugging methods of a new digital public address system.
  本文以南宁国际会议展览中心为例，介绍了一种新型的数字化公共广播系统的组成、设计与调试方法。