Exhibition board , tables chairs , pa system , lighting , stage 展览板，台椅，音响，灯光，舞台
Stage , tables , chairs , pa system , power supply 舞台台椅音响电源
Man : over pa system : proceed to the nearest mall exit in an orderly fashion 有序地从最近的出口撤离
Man : ( over pa system ) : proceed to the nearest mall exit in an orderly fashion 有序地从最近的出口撤离
Frame - signal synchronization technology and realization of pas system based on gps 系统帧信号同步技术与实现
Microphones pa system 多元化麦克风系统
How to set up science and rational pa system and more effectively appraisal 怎样建立科学、合理的绩效考核体系?如何才能更加有效地进行考核
Public address systems ( pa systems ) are commonly used in american malls , airports and grocery stores 公共广播系统在美国的商场、机场、和杂货店普遍使用。
Introduction of the k2 / b1801 system which rapidly sets a standard for medium sized pa systems in germany 2001年推出全新k2 / b1801系统，随即成为德国中型pa系统的领航标。
Free use of in - house pa system and microphones plus an early bird privilege of one lunch buffet coupon for 2 persons at harbour lounge is offered for each booking on or before 31 january 2002 另凡于2002年1月31日前成功预订谢师宴套餐，更可免费获赠港湾廊2人自助午餐餐券乙张。
