public-address system (pa system) 中文意思是什麼
public-address system (pa system)
解釋
擴音系統-
The public broadcast system which is called public - address system is called pa system for short. it is an important method to propagate the real - time information in a certain space. it is primarily used for the airports, train stations, bus stations, stadiums and the large supermarkets
公共廣播又稱有線廣播,簡稱pa廣播( publicaddresssystem ) ,是在一定的區域范圍內傳播實時信息的重要手段,主要用於飛機場、火車站、汽車站、體育場、商場和超市等場所,其主要任務是為公共場所提供清晰的富有效率的聲響環境。
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