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public-address system

扩声系统；[广播] 有线广播系统；公用地址系统

1、扩音系统

...mike 扩音器public-address system 扩音系统horn 喇叭 ...

2、有线广播

...public 公众public-address system 有线广播public-opinion poll 民意测验 ...

cablecasting public-address system有线广播

turn up the public-address system调高播音系统的音量

public-fire alarm address system火警广播系统

public-fire E alarm address system火警广播系统

Public-fire ĥ alarm address system火警广播系统

multi-input public address system多输入公用地址系统

电子、通信与自动控制技术

艺术学

新闻学与传播学

经济学

机械工程

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

同义词：public address systemP.A. systemPA systemP.A.PA

1.
N-COUNT（可数名词） 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 is also used. 播音装置; 可缩写为PA

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