public address system

noun

1. 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

1. N-COUNT 扩音系统（缩略形式为PA）
   A public address system is a set of electrical equipment which allows someone's voice, or music, to be heard throughout a large building or area. The abbreviation PA is 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。

1. Someone cranked up the volume of the public address system
   有人调大了公共广播系统的音量。
2. 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。
3. They said they would page him over the public address system.
   他们说他们要借广播系统寻找他。
4. 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。
5. 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。
6. 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。
7. 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。
8. 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。
9. 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。
10. 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。
11. 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。
12. 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。
13. 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。
14. 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）。
15. The captain spoke to the passengers over the public address system.
    船长通过播音装置向乘客讲话。
16. 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
17. 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。
18. Both a microphone for audio recording and speakers as part of a public address system can be connected to the cameras.
    双麦克风使得相机具有录音和喇叭功能，并作为公共广播系统能被连接到相机。
19. Some problems of the power transmission circuit in the public address system are discussed.
    探讨了定压式公共广播系统传输线路的一些问题。
20. 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。
21. 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。
22. 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
23. 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
24. 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。
25. 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。
26. Design on the Public Address System of Chongqing Fuling Stadium
    重庆涪陵体育场扩声系统设计
27. A proposal on acoustic characteristic indices of public address system in a Hall
    厅堂扩声系统声学特性指标的建议
28. 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。
29. 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。

noun

1. an electronic amplification system used as a communication system in public areas

   Synonym:    P.A. systemPA systemP.A.PA