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
- 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。 - 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。 - 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。 - 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 - 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。 - 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。 - 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）。 - 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。 - 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。 - Someone cranked up the volume of the public address system
有人调大了公共广播系统的音量。