public address system
英 [ˌpʌblɪk əˈdres sɪstəm]
美 [ˌpʌblɪk əˈdres sɪstəm]
n. 扩音系统
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.- 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。
- The news was announced on the public address system at the high school.
英英释义
noun
- an electronic amplification system used as a communication system in public areas
双语例句
- 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。 - 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 public address system in the hospital was used for paging.
医院里的扩音系统用来呼叫人名。 - 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 - 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）。 - 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。 - 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 - 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。 - 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。 - 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。